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Good High School Chemistry Books
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Mitch
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43
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22071
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November 08, 2009, 02:17:37 AM
by putchi_punch
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Good ways to revise
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jgaoxx06
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34
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13670
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June 19, 2009, 12:52:08 AM
by nucleophile
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FORUM RULES: READ THIS BEFORE POSTING!
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geodome
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0
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11396
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June 03, 2006, 04:24:18 PM
by geodome
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Is my understanding of chemical formulae correct?
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DarkLightA
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16
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135
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Today at 10:49:43 AM
by The Cancer Curer
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Is this right of a teacher?
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DarkLightA
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14
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85
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Today at 10:37:16 AM
by renge ishyo
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What does (aq) mean?
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DarkLightA
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3
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36
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Today at 05:46:00 AM
by DarkLightA
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Molecular Mass Corrections..
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JChoiEx
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2
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35
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Today at 05:11:19 AM
by JGK
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Chemical kinetics
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Kate
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10
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167
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Today at 04:50:13 AM
by cliverlong
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Oxygen - topic
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specialised
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0
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17
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Today at 02:51:47 AM
by specialised
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Organic chemistry naming hydrocarbons according to IUPAC
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matt1234
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2
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42
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Today at 01:02:30 AM
by matt1234
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Problem with Aromatic Amines
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NickNunes
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1
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48
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Yesterday at 10:12:24 PM
by Dan
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quick Stoichiometry question please...
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huskywolf
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6
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169
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Yesterday at 09:51:01 PM
by theangrybaby
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Theromodynamics Lab
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ShadyNarcotics
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4
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134
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Yesterday at 08:48:18 PM
by Borek
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Wedge-and-dash, Molecular Structures in 2-dimensions
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cyray7
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1
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27
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Yesterday at 07:31:11 PM
by AWK
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HL Chemistry -- Human Biochemistry
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Kazum
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2
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48
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Yesterday at 04:42:31 PM
by The Cancer Curer
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Condensation Question...
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hiswifetheirmom
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4
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52
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Yesterday at 03:41:34 PM
by The Cancer Curer
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Heat of Formation of Sodium Citrate
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kjones
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3
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1541
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Yesterday at 02:11:14 PM
by ShadyNarcotics
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Chemistry Books
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93mf
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1
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43
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Yesterday at 11:02:47 AM
by cliverlong
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Distillation
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jsmith613
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9
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87
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Yesterday at 07:26:55 AM
by typhoon2028
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Alicyclic compounds
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ILoveISO
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2
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72
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Yesterday at 05:41:59 AM
by Ranadeep
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Balancing chemical equations and calculations using equations
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matt1234
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2
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71
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Yesterday at 03:15:33 AM
by orgoclear
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Which are favored at equilibrium?
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hiswifetheirmom
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5
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76
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Yesterday at 03:13:53 AM
by hiswifetheirmom
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Thermodynamics problem
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Kaitosan
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3
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75
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November 18, 2009, 04:43:14 PM
by ImNotQ...
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Which is the stronger acid??
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hiswifetheirmom
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3
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65
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November 18, 2009, 03:51:49 PM
by The Cancer Curer
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Avogadro's Number Experiment
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93mf
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1
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49
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November 18, 2009, 01:22:53 PM
by cth
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Moles problem
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Hemidol
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8
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124
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November 18, 2009, 10:54:30 AM
by jsmith613
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Basic Problem-Moles-Molecules
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adkinsjr
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2
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40
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November 18, 2009, 09:56:03 AM
by cth
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How do I know which molecules are polar?
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s3a
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3
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57
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November 18, 2009, 09:25:18 AM
by vanklik
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did i do this correctly?
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ding0
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2
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71
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November 18, 2009, 05:34:33 AM
by Entrigued
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Yield/Purity of Alum
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ILoveISO
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21
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324
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November 18, 2009, 05:27:14 AM
by Entrigued
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scuba tank drain to pressure calculation
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rmurray
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6
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94
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November 18, 2009, 03:33:00 AM
by rmurray
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Mixed questions on MCQ paper
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CIE alevel
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5
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131
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November 17, 2009, 09:28:01 PM
by cliverlong
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Calculate the standard molar enthalpy of formation of CaSO4(s).
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panchi
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3
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84
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November 17, 2009, 08:45:08 PM
by sjb
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Recycling Alum
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ILoveISO
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1
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62
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November 17, 2009, 07:04:48 PM
by ILoveISO
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can someone please show me how to do this? relative number of atoms
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theframes
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12
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217
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November 17, 2009, 01:04:53 PM
by theframes
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isomers problem
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Floreaa
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1
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48
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November 17, 2009, 08:51:48 AM
by sjb
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Diffusion rate
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Geddoe
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1
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51
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November 16, 2009, 09:03:39 PM
by Borek
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Pressure calculation
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Hemidol
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1
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47
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November 16, 2009, 07:23:46 PM
by renge ishyo
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Homonuclear Diatomic Molecules
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SigmaBond
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7
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109
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November 16, 2009, 04:26:36 PM
by renge ishyo
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What determines if a atom will mix with another molecule/atom to make a new one?
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pewpew
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4
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101
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November 16, 2009, 01:32:22 PM
by pewpew
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Titrating Iron tablets.
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SlayerCake
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11
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278
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November 16, 2009, 11:23:02 AM
by Arctic-Nation
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Chemistry HighSchool Problems...
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IamNooB
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6
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128
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November 16, 2009, 10:36:29 AM
by JGK
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Ca(OH)2 Low sollubility problem
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jeepack
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0
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43
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November 16, 2009, 08:09:18 AM
by jeepack
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Aluminium liberation H2
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huskywolf
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18
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213
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November 16, 2009, 04:29:56 AM
by huskywolf
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Why there is no 'quadra' bond?
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lsc04361
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4
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127
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November 15, 2009, 10:51:09 PM
by lsc04361
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Various periodic trends
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Geddoe
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0
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38
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November 15, 2009, 12:50:32 PM
by Geddoe
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Na2CO3 . XH2O (X= 0 to 10) Find the value of X
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novi
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5
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75
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November 15, 2009, 12:00:49 PM
by Borek
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Multiple choice ques. on sulfur dioxide, brine, car exhaust & organic
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CIE alevel
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1
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51
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November 15, 2009, 11:39:59 AM
by Arctic-Nation
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Limiting Reactant Experiment?
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DBJKIBA
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3
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57
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November 15, 2009, 09:01:40 AM
by Borek
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Lewis structures, geometry, and hybrids
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Geddoe
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0
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38
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November 15, 2009, 08:16:30 AM
by Geddoe
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atomic weight and liberation of H2 gas?
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huskywolf
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7
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122
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November 15, 2009, 03:22:27 AM
by huskywolf
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Avogadro's law
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Goharshady
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5
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132
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November 14, 2009, 10:52:06 PM
by Goharshady
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themochemistry calculation help
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panchi
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1
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61
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November 14, 2009, 12:54:24 PM
by Borek
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A question
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Amir _hb
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2
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82
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November 14, 2009, 10:35:48 AM
by renge ishyo
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Molarity and Rate Law
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snoopy
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1
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52
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November 14, 2009, 10:00:45 AM
by renge ishyo
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A STP chem question
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asadc12
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1
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69
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November 14, 2009, 09:53:35 AM
by renge ishyo
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Stoichiometry
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Twitchy5
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2
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58
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November 14, 2009, 06:44:22 AM
by Twitchy5
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HELP ME PLEASE !!!
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mathnice1
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4
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182
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November 14, 2009, 01:55:59 AM
by billnotgatez
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Are these done right? PART 2
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World
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2
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102
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November 12, 2009, 07:09:49 PM
by LQ43
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Alum lab
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ILoveISO
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4
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115
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November 12, 2009, 01:37:02 PM
by ILoveISO
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Naming Ionic Compounds
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adkinsjr
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6
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137
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November 12, 2009, 11:22:22 AM
by Borek
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How do I make standard solution of iodine in aqueous potassium iodide?
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mostlynotugly
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3
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121
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November 12, 2009, 07:41:20 AM
by Borek
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Wicking in fibres
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kemkid794
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6
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213
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November 12, 2009, 05:13:00 AM
by JGK
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Acetic acid vs. Hydrochloric acid
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hiswifetheirmom
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2
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169
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November 11, 2009, 10:31:29 PM
by tinapratiwi
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what is the problem with direct heating of thermometer bulb
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kenny1999
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3
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129
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November 11, 2009, 04:36:10 PM
by Sceak
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Molecular Solids/Covalent solids
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ryno16
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1
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142
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November 11, 2009, 04:35:31 AM
by Borek
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Valence electrons
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Geddoe
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1
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171
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November 10, 2009, 02:02:00 PM
by Tin Man
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Faraday and energy efficiency
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steph_r
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4
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103
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November 10, 2009, 11:46:08 AM
by steph_r
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Online Chem Lab Help
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nilekyle
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4
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119
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November 10, 2009, 04:17:21 AM
by nilekyle
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Sigma/pi bonding
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Hemidol
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5
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165
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November 10, 2009, 02:37:37 AM
by Ranadeep
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%wt/v vs %wt/wt
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ii2
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4
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105
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November 10, 2009, 01:22:24 AM
by ii2
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Calculate change in energy expected for this process
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DMOC
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1
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72
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November 09, 2009, 08:54:45 PM
by Borek
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Ratio of Moles of Reactants
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Bers55
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3
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108
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November 09, 2009, 05:16:16 PM
by The Cancer Curer
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fertiliser calculation
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ryan1
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2
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158
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November 09, 2009, 03:34:00 AM
by albert academy
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Predict the products? (Acid- Base)
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maccha
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5
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184
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November 09, 2009, 02:27:01 AM
by Borek
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Help with chem lab?
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silverwynterspirit
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2
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128
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November 08, 2009, 09:18:59 PM
by Borek
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solubility
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Koerakeee
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5
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112
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November 08, 2009, 08:44:33 PM
by Borek
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Reaction Mechanism Problem
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putchi_punch
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1
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97
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November 08, 2009, 04:52:03 PM
by Schrödinger
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Hydrogen peroxide and Clorox regular bleach
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gabeyld
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7
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194
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November 08, 2009, 02:55:50 PM
by nj_bartel
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Resonance
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Hemidol
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1
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94
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November 08, 2009, 10:08:30 AM
by FeLiXe
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Hydrolysis ?
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hiswifetheirmom
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1
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108
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November 08, 2009, 06:57:54 AM
by MrTeo
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Difference Between Coordinate bonding and backbonding
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matsci0000
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1
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72
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November 08, 2009, 01:41:10 AM
by cth
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Moles Question
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positiveion
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1
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107
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November 08, 2009, 12:52:52 AM
by Borek
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Bond length, energy, etc.
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Hemidol
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1
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94
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November 07, 2009, 10:13:55 PM
by Borek
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why +2 charge?
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Moss
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4
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167
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November 07, 2009, 05:06:21 PM
by Ranadeep
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Carbon dioxide
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rahmatkat
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2
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95
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November 07, 2009, 02:55:40 PM
by albert academy
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reaction??
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tinapratiwi
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1
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124
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November 07, 2009, 11:48:02 AM
by tori
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Can anyone please help me with grade 12 Kinetics?
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hanagasumi
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0
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64
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November 07, 2009, 11:29:26 AM
by hanagasumi
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Diatomic molecule question
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maccha
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3
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98
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November 07, 2009, 09:45:58 AM
by cth
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How can you prevent a test tube from exploding?
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Xuanny
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1
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102
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November 07, 2009, 09:01:01 AM
by IndieSci
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Calculating the solute (osmosis) potential of this solution
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NickHolt
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0
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77
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November 07, 2009, 05:40:10 AM
by NickHolt
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Help with chemistry workbook
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Evaldas
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19
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460
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November 07, 2009, 05:18:33 AM
by Borek
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AP Chem Gas Problem
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blstrs
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2
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129
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November 07, 2009, 03:38:44 AM
by blstrs
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Investigatory Project: how to perform an experiment
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crispypatty
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3
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156
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November 07, 2009, 03:08:52 AM
by cliverlong
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Question on electrolysis
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TheVanquished
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27
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510
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November 06, 2009, 10:41:13 PM
by Borek
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Enthalpy of fuels
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hoppingma-d
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19
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294
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November 06, 2009, 10:02:21 PM
by UG
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Oxidation-Reduction Net Ionic equations: Elemental metal with HCl
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psychoNOT
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6
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240
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November 05, 2009, 09:06:45 PM
by Borek
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Are these done right?
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World
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2
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125
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November 05, 2009, 09:01:01 PM
by Borek
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Identification test for anions
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rahmatkat
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5
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169
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November 05, 2009, 05:36:01 PM
by rahmatkat
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reactivity of elements
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brittbratt
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2
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140
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November 05, 2009, 04:54:05 PM
by brittbratt
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Colourimetric lab help
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ILoveISO
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3
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151
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November 05, 2009, 10:40:26 AM
by sjb
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(anti-)Markovnikov's Rule
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KurzickMushroom
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2
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186
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November 05, 2009, 06:42:46 AM
by KurzickMushroom
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concentration question
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ryan1
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10
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243
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November 04, 2009, 10:01:13 AM
by Borek
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Percentage of hydrates
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MakoEyes
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6
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199
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November 04, 2009, 07:30:58 AM
by Borek
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Help please - lab due today - Impact on VOLTAGE when diluting anode solution
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daveh
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2
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142
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November 04, 2009, 01:36:28 AM
by daveh
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concentration problem 2
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ryan1
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3
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117
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November 04, 2009, 12:22:08 AM
by DrCMS
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Need help solving homework related to cryoscopic depression and binary mixtures
|
Kate
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5
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145
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November 03, 2009, 10:45:24 PM
by Kate
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Hydrates (moles, weights, etc.)
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Hemidol
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1
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90
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November 03, 2009, 09:01:24 PM
by Borek
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An interesting but complicated question
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Sparrow
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3
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118
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November 03, 2009, 08:56:32 PM
by Borek
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Weights
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Geddoe
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10
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251
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November 03, 2009, 06:52:59 PM
by UG
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What is the name of this polymer
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jsmith613
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5
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188
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November 03, 2009, 03:12:18 PM
by IndieSci
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A Nice Problem
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havaliza
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7
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263
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November 03, 2009, 01:35:28 PM
by IndieSci
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Chemistry hydrate (percent mass) question help?
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Sparrow
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4
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105
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November 03, 2009, 12:22:38 PM
by Sparrow
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Locating Molecular Formulas
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The Cancer Curer
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4
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210
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November 03, 2009, 04:15:50 AM
by JGK
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Chem is the correct
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jsmith613
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2
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159
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November 03, 2009, 12:55:34 AM
by jsmith613
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Vitamin C lab and question(updated with notes )
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dantex3
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1
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159
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November 02, 2009, 10:35:20 PM
by cliverlong
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Aspirin & Paracetamol Functional Groups Reactivity
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Lolwot
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1
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164
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November 02, 2009, 03:50:06 PM
by IndieSci
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Stoichiometry Question
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Elements
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3
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170
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November 02, 2009, 03:49:24 PM
by The Cancer Curer
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What is this molecule?
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Christopha
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2
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137
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November 02, 2009, 10:02:13 AM
by cth
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Factors Affecting Covalent Bond Strength ?
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Ranadeep
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6
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376
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November 02, 2009, 07:00:50 AM
by renge ishyo
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What's wrong with this reaction of exhaust gases from engines?
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CIE alevel
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4
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163
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November 02, 2009, 04:48:29 AM
by AWK
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Non-Polar dissolves Non-polar?
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chuckface
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5
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251
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November 01, 2009, 09:21:57 PM
by chuckface
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What is n and l?
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The Cancer Curer
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2
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162
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November 01, 2009, 07:13:50 PM
by cliverlong
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ionic compounds, electrons
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theframes
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4
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209
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November 01, 2009, 05:18:37 PM
by theframes
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Understanding Mass Spectrometer
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positiveion
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1
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105
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November 01, 2009, 04:21:31 AM
by Borek
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Chemistry Lab Titration
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matt1234
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10
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364
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November 01, 2009, 01:54:45 AM
by matt1234
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Explaining the Kinetic Molecular Theory...
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Stormer
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1
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110
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November 01, 2009, 12:48:48 AM
by cliverlong
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Lowest density at standard state?
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ILoveISO
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1
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156
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October 31, 2009, 01:36:47 PM
by Borek
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Weird Questions on Electron Spins
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Ranadeep
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0
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92
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October 31, 2009, 07:22:42 AM
by Ranadeep
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Paramagnetic And dimagnetic
|
Geddoe
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1
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133
|
October 31, 2009, 05:38:33 AM
by cth
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The Cell
|
The Cancer Curer
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3
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234
|
October 31, 2009, 04:41:30 AM
by The Cancer Curer
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|
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Orbitals
|
s3a
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3
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178
|
October 30, 2009, 03:31:37 PM
by renge ishyo
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help? :)
|
dustinnn
|
3
|
163
|
October 30, 2009, 09:36:17 AM
by cliverlong
|
|
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|
Solubility Questions
|
matt1234
|
3
|
190
|
October 30, 2009, 09:33:56 AM
by matt1234
|
|
|
|
Electron affinity equations
|
Geddoe
|
1
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156
|
October 30, 2009, 09:16:02 AM
by cliverlong
|
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|
need some help with making sense of atomic mass..
|
theframes
|
4
|
192
|
October 30, 2009, 05:54:16 AM
by theframes
|
|
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Electron Configurations
|
The Cancer Curer
|
1
|
163
|
October 29, 2009, 04:48:35 PM
by Xenophilius
|
|
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|
Oxidation - Reduction Lab with Potassium Permanganate
|
ILoveISO
|
7
|
288
|
October 29, 2009, 10:05:06 AM
by ILoveISO
|
|
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|
Atomic Structure --> Write 4 Quantum Numbers for Oxygen
|
s3a
|
0
|
123
|
October 29, 2009, 09:03:16 AM
by s3a
|
|
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|
A few questions
|
dantex3
|
2
|
212
|
October 29, 2009, 06:51:04 AM
by dantex3
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|
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|
Concentration Problem
|
opie_
|
0
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80
|
October 29, 2009, 05:52:17 AM
by opie_
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|
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|
Full Molecular Formula and Net Ionic Equation Help Please
|
emilysunshine
|
1
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226
|
October 28, 2009, 11:26:33 AM
by cliverlong
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|
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|
Work revision concerning the dissolution of gases in liquids
|
Kate
|
4
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165
|
October 27, 2009, 10:23:20 PM
by Kate
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Concentration calculation
|
matt1234
|
7
|
381
|
October 27, 2009, 10:03:46 PM
by Dan
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mole and molar mass help
|
ding0
|
4
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294
|
October 27, 2009, 09:50:41 PM
by Borek
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|
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Eeeek.. how did they do that?
|
NecesitoAyundar.
|
1
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141
|
October 27, 2009, 09:34:34 PM
by Borek
|
|
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|
Question about Ammonia
|
J.C.
|
1
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141
|
October 27, 2009, 08:27:00 PM
by AWK
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|
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Simple Mole Equations
|
brotherseerko
|
1
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178
|
October 26, 2009, 09:48:26 PM
by kapital
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|
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|
how to get electron configuration for molecules/compounds (ex: CoF2)
|
skiddodles
|
0
|
117
|
October 26, 2009, 08:35:57 PM
by skiddodles
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|
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|
Chemical Reactions
|
The Cancer Curer
|
11
|
317
|
October 26, 2009, 05:18:28 PM
by The Cancer Curer
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|
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|
Arrange the bonds in each of the following sets in order of increasing polarity
|
gingerthing
|
4
|
289
|
October 26, 2009, 04:42:22 PM
by brotherseerko
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|
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A few questions.
|
Evaldas
|
10
|
706
|
October 26, 2009, 11:01:25 AM
by Arctic-Nation
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|
|
|
Help with research paper.
|
Noobert
|
27
|
619
|
October 26, 2009, 06:45:35 AM
by typhoon2028
|
|
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|
Empirical formula help
|
interesting
|
1
|
137
|
October 26, 2009, 04:04:14 AM
by Borek
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|
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|
Partial pressure problem..
|
petstar21
|
1
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186
|
October 26, 2009, 01:32:33 AM
by Dan
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|
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|
Citric Acid problem (finding its mass after it's dissolved in a solution)
|
DMOC
|
4
|
181
|
October 25, 2009, 11:08:16 PM
by CIE alevel
|
|
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Why isn't it important to record the exact amount of water used?
|
DMOC
|
5
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190
|
October 25, 2009, 01:48:52 PM
by DMOC
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|
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|
mole question help
|
interesting
|
13
|
378
|
October 25, 2009, 01:13:37 PM
by Borek
|
|
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Anhydrous vs Hydrous in Lab Report
|
ChmStud
|
2
|
158
|
October 25, 2009, 11:33:49 AM
by ChmStud
|
|
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|
stoichemistry problem
|
bone77
|
3
|
200
|
October 25, 2009, 11:19:48 AM
by Arctic-Nation
|
|
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|
anions in soluble group
|
lexiconsthedevil
|
1
|
150
|
October 25, 2009, 09:55:37 AM
by Borek
|
|
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|
Stoichiometry problems
|
Caperi
|
1
|
212
|
October 25, 2009, 09:30:33 AM
by Arctic-Nation
|
|
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Finding the partial pressure- oh it's so impartial!
|
petstar21
|
4
|
200
|
October 24, 2009, 10:22:52 PM
by Borek
|
|
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|
Another Stoichiometry Problem
|
positiveion
|
3
|
166
|
October 24, 2009, 09:34:05 PM
by ShadowSpirit
|
|
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|
Cancerous Mutations in DNA
|
The Cancer Curer
|
6
|
241
|
October 24, 2009, 12:56:18 PM
by The Cancer Curer
|
|
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pH
|
kapital
|
5
|
231
|
October 24, 2009, 09:22:01 AM
by Borek
|
|
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redox
|
Moss
|
5
|
214
|
October 23, 2009, 11:30:47 PM
by Borek
|
|
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|
Stoichiometry Problem
|
positiveion
|
9
|
203
|
October 23, 2009, 07:32:48 PM
by UG
|
|
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|
Easy acid question
|
user_5
|
4
|
259
|
October 23, 2009, 12:45:39 PM
by The Cancer Curer
|
|
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Equlibria - partial pressure
|
CIE alevel
|
1
|
152
|
October 23, 2009, 04:40:10 AM
by typhoon2028
|
|
|
|
Help please Acids & bases
|
laf3ef
|
1
|
165
|
October 23, 2009, 02:23:37 AM
by cliverlong
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|
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|
ammounium sulfate
|
notaCHE
|
2
|
229
|
October 22, 2009, 09:01:51 PM
by Borek
|
|
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|
Properties of polyethene
|
cliverlong
|
2
|
207
|
October 22, 2009, 03:00:06 AM
by typhoon2028
|
|
|
|
Not even sure what this means... (w/w)?
|
mizzle
|
3
|
253
|
October 21, 2009, 09:21:06 PM
by Borek
|
|
|
|
Various Aluminum Reactions
|
Geddoe
|
3
|
269
|
October 21, 2009, 09:19:14 PM
by AWK
|
|
|
|
What is the range of visible light?
|
s3a
|
4
|
202
|
October 21, 2009, 12:22:49 PM
by Borek
|
|
|
|
What is meant by the Pka value of a side chain in an amino acid?
|
sameeralord
|
4
|
217
|
October 21, 2009, 01:31:42 AM
by sameeralord
|
|
|
|
Simple redox question.
|
Bessie
|
1
|
189
|
October 20, 2009, 09:29:00 PM
by Borek
|
|
|
|
Quantum theory
|
Geddoe
|
2
|
196
|
October 20, 2009, 09:16:37 PM
by Borek
|
|
|
|
Energy calculations
|
Hemidol
|
8
|
308
|
October 20, 2009, 07:15:56 PM
by Yggdrasil
|
|
|
|
Help...
|
dudemane
|
1
|
161
|
October 20, 2009, 04:29:43 PM
by UG
|
|
|
|
Organic nomencalutre
|
kapital
|
1
|
169
|
October 20, 2009, 07:27:52 AM
by JGK
|
|
|
|
Why does imidazolium ring contain a positive charge?
|
sameeralord
|
1
|
171
|
October 20, 2009, 06:19:02 AM
by azmanam
|
|
|
|
Reaction Spontanaity
|
CandyApples
|
2
|
192
|
October 19, 2009, 08:54:42 PM
by CandyApples
|
|
|
|
Quantity of heat
|
ISuckAtThis
|
1
|
200
|
October 19, 2009, 08:48:25 PM
by Borek
|
|
|
|
PKA value and net charge(due tomorrow please help)
|
sameeralord
|
1
|
251
|
October 19, 2009, 10:20:20 AM
by renge ishyo
|
|
|
|
Ionic Coumpound % Composition
|
Naples
|
1
|
202
|
October 18, 2009, 09:33:29 PM
by Borek
|
|
|
|
pKa values from data set
|
Hemidol
|
8
|
785
|
October 18, 2009, 09:07:50 PM
by Borek
|
|
|
|
Oxidation Reduction Reactions
|
Naples
|
1
|
179
|
October 18, 2009, 08:36:24 PM
by AWK
|
|
|
|
Identifying orbitals via quantum numbers
|
Hemidol
|
9
|
380
|
October 17, 2009, 11:33:47 PM
by Schrödinger
|
|
|
|
"The ionization energy of gold is 890.1 kJ/mol. Is light with a wavelength of..?
|
s3a
|
1
|
261
|
October 17, 2009, 04:02:09 PM
by Yggdrasil
|
|
|
|
Combustion of propane
|
Tsiih
|
1
|
194
|
October 17, 2009, 03:13:30 PM
by Tsiih
|
|
|
|
ideal gas law
|
KitCh
|
1
|
186
|
October 17, 2009, 10:51:36 AM
by KitCh
|
|
|
|
Ionisation energies for an element X
|
vanklik
|
3
|
232
|
October 17, 2009, 10:29:19 AM
by vanklik
|
|
|
|
Electron's mass
|
s3a
|
1
|
204
|
October 17, 2009, 09:24:48 AM
by renge ishyo
|
|
|
|
Wavelength of a photon (I get right numerical answer but with the wrong sign)
|
s3a
|
3
|
289
|
October 17, 2009, 09:15:52 AM
by renge ishyo
|
|
|
|
Definition of Intereference in terms of Waves
|
s3a
|
3
|
206
|
October 17, 2009, 07:25:16 AM
by Yggdrasil
|
|
|
|
van der Waals forces
|
Kate
|
15
|
584
|
October 17, 2009, 07:22:13 AM
by Yggdrasil
|
|
|
|
oxidation numbers
|
Moss
|
2
|
212
|
October 17, 2009, 05:57:41 AM
by yukiheart
|
|
|
|
Why magnesium chloride is a solid...
|
vanklik
|
2
|
233
|
October 17, 2009, 04:37:03 AM
by vanklik
|
|
|
|
Is concentration an exact number or a measured value?
|
gt5hz
|
1
|
183
|
October 16, 2009, 11:46:20 PM
by Borek
|
|
|
|
Various electromagnetic calculations
|
Hemidol
|
3
|
228
|
October 16, 2009, 11:25:51 PM
by Borek
|
|
|
|
Barium chloride and sulfuric acid...
|
mizzle
|
9
|
380
|
October 16, 2009, 05:33:30 PM
by steak
|
|
|
|
Le Chatelier's Principle, Temperature, Endothermic Reaction...
|
mizzle
|
3
|
261
|
October 16, 2009, 04:15:55 PM
by Schrödinger
|
|
|
|
Ridiculous...
|
mizzle
|
0
|
156
|
October 16, 2009, 04:10:10 PM
by mizzle
|
|
|
|
Principal quantum numbers and photons
|
MakoEyes
|
2
|
258
|
October 16, 2009, 02:11:19 PM
by MakoEyes
|
|
|
|
chemistry gas question stumped :(
|
asadc12
|
1
|
170
|
October 15, 2009, 09:07:49 PM
by Borek
|
|
|
|
Formation of salts from acid/bases (check)
|
Geddoe
|
7
|
289
|
October 15, 2009, 08:05:46 PM
by sjb
|
|
|
|
Various Molarity problems (check)
|
Geddoe
|
3
|
215
|
October 15, 2009, 05:04:50 PM
by UG
|
|
|
|
Molar mass practice problems
|
matt1234
|
5
|
279
|
October 15, 2009, 01:00:47 PM
by matt1234
|
|
|
|
Determining reaction type from thermochemcial equation
|
gt5hz
|
0
|
124
|
October 15, 2009, 11:34:36 AM
by gt5hz
|
|
|
|
ion equations of bases
|
science fan
|
3
|
199
|
October 15, 2009, 05:40:02 AM
by Borek
|
|
|
|
volume of gas from solution *(plz help me)
|
anon163
|
12
|
306
|
October 14, 2009, 08:25:44 AM
by sjb
|
|
|
|
CO2 conversion help.
|
A_Dubbs
|
3
|
241
|
October 14, 2009, 06:03:11 AM
by Borek
|
|
|
|
Enthalpy change when neutralising weak acid / hydrocyanic acid (EdExcel A level
|
cliverlong
|
1
|
242
|
October 14, 2009, 01:51:29 AM
by Borek
|
|
|
|
Question regarding mass...
|
Tarondar
|
6
|
376
|
October 13, 2009, 08:27:28 PM
by Tarondar
|
|
|
|
Benzyl Amide and Benzamide
|
KurzickMushroom
|
3
|
270
|
October 13, 2009, 07:41:55 PM
by plankk
|
|
|
|
optical isomers
|
Joellll
|
1
|
175
|
October 13, 2009, 06:47:25 PM
by nj_bartel
|
|
|
|
Chemistry conclusion help...
|
Noobert
|
10
|
483
|
October 13, 2009, 02:33:07 PM
by Noobert
|
|
|
|
pH and titration clarification
|
hamil
|
3
|
209
|
October 13, 2009, 11:53:25 AM
by Borek
|
|
|
|
What's the difference between the acyl group and a carbonyl group.
|
cam1982
|
2
|
246
|
October 12, 2009, 10:34:12 AM
by cam1982
|
|
|
|
alkynes
|
stef975_2009
|
1
|
205
|
October 12, 2009, 07:03:08 AM
by sjb
|
|
|
|
Relative Formula Mass
|
Viral
|
2
|
283
|
October 12, 2009, 05:32:31 AM
by DrCMS
|
|
|
|
volumetric calculation
|
ghk
|
4
|
289
|
October 12, 2009, 04:51:54 AM
by DrCMS
|
|
|
|
I don't understand this solution about partial pressure.
|
mark1950
|
1
|
229
|
October 12, 2009, 03:59:21 AM
by Borek
|
|
|
|
Problem understanding basics of acid-base calculations
|
cliverlong
|
8
|
333
|
October 11, 2009, 11:55:42 PM
by Borek
|
|
|
|
Molarity and grams
|
Geddoe
|
4
|
293
|
October 11, 2009, 11:36:57 PM
by cliverlong
|
|
|
|
computing pH
|
hamil
|
2
|
210
|
October 11, 2009, 09:35:33 PM
by Borek
|
|
|
|
Gas Law
|
ISuckAtThis
|
1
|
218
|
October 11, 2009, 09:33:59 PM
by Borek
|
|
|
|
Unknown acid finding
|
Geddoe
|
5
|
309
|
October 11, 2009, 08:30:15 PM
by cliverlong
|
|
|
|
Complicated Mass Question
|
Viral
|
1
|
205
|
October 11, 2009, 08:01:08 PM
by sjb
|
|
|
|
Redox titration with FeSO4 and KMnO4
|
eesux
|
11
|
622
|
October 11, 2009, 07:31:55 AM
by eesux
|
|
|
|
CALCULATE THE VOLUME
|
mastermin346
|
1
|
177
|
October 10, 2009, 10:59:15 PM
by Borek
|
|
|
|
Calculating the Energy of a Photon
|
Zeugma
|
3
|
389
|
October 10, 2009, 08:23:54 PM
by cliverlong
|
|
|
|
Quick question regarding molarity?
|
ILoveISO
|
1
|
208
|
October 10, 2009, 05:55:22 PM
by renge ishyo
|
|
|
|
Reaction between Sodium thiosulfate and Iron (III) chloride!
|
ananasdoceu
|
1
|
264
|
October 10, 2009, 10:36:39 AM
by cliverlong
|
|
|
|
Molarity
|
Hemidol
|
5
|
299
|
October 09, 2009, 10:41:02 PM
by Borek
|
|
|
|
Organic - alkene oxidation with MnO4-
|
CIE alevel
|
3
|
287
|
October 09, 2009, 07:37:49 PM
by plankk
|
|
|
|
Writing molecular equations and net ionic equations (check)
|
Hemidol
|
3
|
659
|
October 09, 2009, 07:16:36 PM
by plankk
|
|
|
|
Empirical Formula giving me too much trouble. >:(
|
ty
|
3
|
205
|
October 09, 2009, 10:14:51 AM
by ty
|
|
|
|
stoichiometry problem with concentration and limited reagent
|
chrissy
|
1
|
268
|
October 08, 2009, 08:57:07 PM
by cliverlong
|
|
|
|
Equilibrium Question
|
gt5hz
|
5
|
310
|
October 08, 2009, 08:42:57 PM
by cliverlong
|
|
|
|
Finding Weight Percent in a Compound (check)
|
Hemidol
|
10
|
387
|
October 08, 2009, 10:14:36 AM
by DrCMS
|
|
|
|
Percentages in chemical equation
|
Geddoe
|
3
|
216
|
October 08, 2009, 07:41:23 AM
by DrCMS
|
|
|
|
Redox Reaction questions
|
MakoEyes
|
10
|
368
|
October 08, 2009, 06:39:47 AM
by Borek
|
|
|
|
Chemical In Excess Question
|
saadaziz
|
3
|
240
|
October 08, 2009, 06:07:57 AM
by saadaziz
|
|
|
|
More mass calculations
|
Hemidol
|
4
|
311
|
October 08, 2009, 05:01:58 AM
by Hemidol
|
|
|
|
Predicting the outcome of a series of reactions.
|
Geddoe
|
3
|
297
|
October 08, 2009, 04:31:50 AM
by AWK
|
|
|
|
Mg Metal with Various Acids, Gas produced?
|
Hemidol
|
3
|
273
|
October 08, 2009, 04:29:07 AM
by AWK
|
|
|
|
easy redox reactions...
|
xxdeathxnotexx
|
1
|
253
|
October 07, 2009, 09:52:45 PM
by Borek
|
|
|
|
Identifying Oxidizing/Reducing agents
|
Hemidol
|
1
|
291
|
October 07, 2009, 09:25:38 PM
by Borek
|
|
|
|
Titration sum
|
shanker
|
9
|
318
|
October 07, 2009, 08:16:43 PM
by sjb
|
|
|
|
Empirical Formulas given small amounts in G
|
MakoEyes
|
7
|
375
|
October 07, 2009, 08:08:21 PM
by sjb
|
|
|
|
Please help about Phosphorus
|
steamy
|
0
|
144
|
October 07, 2009, 03:52:37 PM
by steamy
|
|
|
|
Which metal ions have soluble OHs?
|
MakoEyes
|
1
|
242
|
October 07, 2009, 09:33:52 AM
by Borek
|
|
|
|
Synthesis Pathways
|
sirpaul
|
5
|
312
|
October 07, 2009, 08:27:44 AM
by sjb
|
|
|
|
Hydrogen
|
pizza1512
|
1
|
171
|
October 07, 2009, 06:14:45 AM
by billnotgatez
|
|
|
|
Percentage Yield Question
|
saadaziz
|
4
|
218
|
October 07, 2009, 05:41:12 AM
by saadaziz
|
|
|
|
Balanced equations and solubility (precipitate formation, check)
|
Hemidol
|
3
|
354
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October 07, 2009, 02:31:05 AM
by Borek
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|
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Kinetic theory
|
Kate
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5
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311
|
October 07, 2009, 12:50:20 AM
by Kate
|
|
|
|
Density of gases a from reaction- which to test for 1st?
|
CIE alevel
|
1
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197
|
October 06, 2009, 10:36:04 PM
by Borek
|
|
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Oxidation Number
|
MakoEyes
|
5
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474
|
October 06, 2009, 10:03:32 PM
by Borek
|
|
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Balancing equations synthesis, decomposition and combustion
|
matt1234
|
3
|
327
|
October 06, 2009, 07:34:00 AM
by sjb
|
|
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Hot Water Temperature?
|
LauraLaura50070
|
6
|
338
|
October 05, 2009, 08:57:49 PM
by Borek
|
|
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The mass number of an atom equals...
|
s3a
|
1
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299
|
October 05, 2009, 05:40:04 PM
by Yggdrasil
|
|
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car- distance
|
reaperx6
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7
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309
|
October 05, 2009, 11:29:41 AM
by reaperx6
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|
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Mass Spectrometer
|
ywc
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1
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219
|
October 05, 2009, 11:13:18 AM
by cliverlong
|
|
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w/v
|
Bjornson
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2
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215
|
October 05, 2009, 09:25:07 AM
by Borek
|
|
|
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Finding mass via two equations
|
Hemidol
|
5
|
389
|
October 04, 2009, 09:26:49 PM
by Borek
|
|
|
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Limiting Reactants
|
Hemidol
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7
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501
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October 04, 2009, 04:36:52 PM
by Ak
|
|
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Half Life
|
gt5hz
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4
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353
|
October 03, 2009, 10:28:20 AM
by gt5hz
|
|
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Ethylene
|
xwrathbringerx
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2
|
262
|
October 02, 2009, 04:19:09 AM
by typhoon2028
|
|
|
|
Zn + Cu(2+) -> Zn(2+) + Cu
|
ph.r
|
4
|
347
|
October 02, 2009, 04:05:19 AM
by kimyacı
|
|
|
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Balancing Net Ionic Equations
|
Tsiih
|
2
|
441
|
October 02, 2009, 02:57:11 AM
by kimyacı
|
|
|
|
CaC2O4 + KMnO4?? NEED HELP PLEASE.
|
buhjammies
|
3
|
392
|
October 01, 2009, 09:24:35 PM
by Borek
|
|
|
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Question about setting up a solution
|
klasnikov
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5
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269
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October 01, 2009, 09:22:19 PM
by Borek
|
|
|
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Chemistry Dilution Problem
|
zinc
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1
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299
|
October 01, 2009, 03:27:07 PM
by nj_bartel
|
|
|
|
Lewis structure questions
|
matt1234
|
8
|
462
|
October 01, 2009, 01:39:44 PM
by matt1234
|
|
|
|
Colors of phenolthalein changing back when titrating a weak acid and weak base??
|
appleseed
|
1
|
258
|
October 01, 2009, 10:13:50 AM
by kimyacı
|
|
|
|
Finding how many moles needed to complete reaction?
|
MakoEyes
|
9
|
717
|
October 01, 2009, 08:39:05 AM
by MakoEyes
|
|
|
|
Salt preparation
|
jsmith613
|
0
|
220
|
October 01, 2009, 08:30:42 AM
by jsmith613
|
|
|
|
Calculating pH in buffers
|
Compaq
|
4
|
303
|
October 01, 2009, 05:26:06 AM
by Compaq
|
|
|
|
How do I calculate the uncertainty?
|
appleseed
|
1
|
292
|
October 01, 2009, 05:22:51 AM
by Fridushka
|
|
|
|
how to use ICE table properly?
|
m0on
|
1
|
300
|
September 30, 2009, 09:38:43 PM
by Borek
|
|
|
|
Soluble and Insoluble Products (Naming, check)
|
Hemidol
|
1
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320
|
September 30, 2009, 08:09:56 PM
by AWK
|
|
|
|
MOVED: THIS IS AMAZING
|
Mitch
|
0
|
163
|
September 30, 2009, 06:58:10 PM
by Mitch
|
|
|
|
Stoichiometry Question
|
Chris Houston
|
3
|
277
|
September 30, 2009, 11:41:34 AM
by sjb
|
|
|
|
Formula of a Hydrate
|
Hemidol
|
1
|
283
|
September 30, 2009, 09:29:25 AM
by Borek
|
|
|
|
Limiting Reagent Question (my own not a problem)
|
s3a
|
1
|
272
|
September 30, 2009, 07:58:19 AM
by Borek
|
|
|
|
Whats the answer to the carbon-carbon bond in PVC with that in chloroethene?
|
CIE alevel
|
3
|
320
|
September 29, 2009, 10:55:45 PM
by DrCMS
|
|
|
|
Quantum Theory Question Help.....
|
ll_gone
|
1
|
284
|
September 29, 2009, 09:24:08 PM
by cth
|
|
|
|
QUICK QUESTION: The Quantum Mechanical Model of the Atom
|
ILoveISO
|
4
|
340
|
September 29, 2009, 09:09:37 PM
by Borek
|
|
|
|
Find the enthalpy of neutralization, ∆H , in kJ/mol
|
s3a
|
5
|
825
|
September 29, 2009, 06:47:05 PM
by MrTeo
|
|
|
|
Homework help - how to do this problem??
|
wuzbob
|
6
|
406
|
September 29, 2009, 08:58:47 AM
by Borek
|
|
|
|
How to tackle this experiment planning question?
|
CIE alevel
|
5
|
467
|
September 29, 2009, 07:51:49 AM
by billnotgatez
|
|
|
|
Partial pressures
|
hdawnw
|
1
|
225
|
September 28, 2009, 09:05:12 PM
by Borek
|
|
|
|
Partial Pressures again
|
hdawnw
|
1
|
290
|
September 28, 2009, 09:04:25 PM
by Borek
|
|
|
|
Occlusion of ions
|
ISuckAtThis
|
1
|
239
|
September 28, 2009, 08:53:36 PM
by Borek
|
|
|
|
LAB: Separation of a Mixture questions
|
ILoveISO
|
10
|
735
|
September 28, 2009, 07:15:48 PM
by renge ishyo
|
|
|
|
Homework help, naming compounds and polyatomic compunds
|
matt1234
|
4
|
374
|
September 28, 2009, 12:48:17 PM
by matt1234
|
|
|
|
Stoichiometry Volumetric Analysis Problem
|
positiveion
|
1
|
353
|
September 28, 2009, 02:26:22 AM
by Borek
|
|
|
|
Cyclic hydrocarbons
|
xwrathbringerx
|
1
|
253
|
September 28, 2009, 12:59:06 AM
by Borek
|
|
|
|
Design an investigation for thermodynamics - question about basic assumption
|
gt5hz
|
1
|
263
|
September 27, 2009, 09:43:44 PM
by cliverlong
|
|
|
|
Spectator Ions
|
nathankong
|
1
|
268
|
September 27, 2009, 07:36:38 PM
by nj_bartel
|
|
|
|
How to use equation?
|
Tsiih
|
2
|
282
|
September 27, 2009, 04:35:09 PM
by Tsiih
|
|
|
|
Thermochemistry (q vs ΔH, exothermic vs endothermic)
|
s3a
|
4
|
540
|
September 27, 2009, 04:20:52 PM
by s3a
|
|
|
|
pure solids and liquids in equilibria
|
Agnostical
|
2
|
305
|
September 26, 2009, 03:25:14 PM
by Agnostical
|
|
|
|
Calculating the mass of C needed to reduce 15.9g of CuO to Cu
|
Viral
|
4
|
325
|
September 26, 2009, 12:04:52 PM
by Viral
|
|
|
|
Covalent compound naming (check)
|
Hemidol
|
4
|
340
|
September 25, 2009, 11:41:48 AM
by Borek
|
|
|
|
PLEASE HELP QUICK :OO
|
shanker
|
8
|
377
|
September 25, 2009, 11:40:36 AM
by JGK
|
|
|
|
makign a metal alloy at home
|
x-ecutioner
|
3
|
269
|
September 25, 2009, 11:08:08 AM
by renge ishyo
|
|
|
|
Standard Enthalpies
|
Frederick95
|
2
|
770
|
September 25, 2009, 07:07:02 AM
by scopski
|
|
|
|
Why does a reaction happen?
|
Agnostical
|
7
|
456
|
September 25, 2009, 02:22:52 AM
by Borek
|
|
|
|
How much CaO is produced when...
|
Viral
|
7
|
326
|
September 24, 2009, 11:45:05 AM
by DrCMS
|
|
|
|
Atomic structure of chlorine?
|
SciIdyat
|
1
|
379
|
September 23, 2009, 04:06:59 PM
by adnan
|
|
|
|
Why does conc. HCl become yellow when dropped on a mosaic floor.
|
arnab321
|
2
|
391
|
September 23, 2009, 12:00:51 PM
by renge ishyo
|
|
|
|
quantum numbers for an electron
|
miss.strw
|
3
|
410
|
September 23, 2009, 09:50:10 AM
by UG
|
|
|
|
Stoichiometry Concentration Problem
|
positiveion
|
5
|
407
|
September 22, 2009, 11:38:58 PM
by Borek
|
|
|
|
Making a graph, what scale should I use?
|
Hemidol
|
5
|
360
|
September 22, 2009, 08:59:22 PM
by billnotgatez
|
|
|
|
Sig fig rule check
|
Hemidol
|
4
|
402
|
September 22, 2009, 08:35:19 PM
by Fridushka
|
|
|
|
Combustion Trains (i think....)
|
Leeple Stays
|
1
|
222
|
September 22, 2009, 04:17:01 PM
by Leeple Stays
|
|
|
|
Stoichiometry
|
positiveion
|
10
|
470
|
September 22, 2009, 12:18:33 AM
by DrCMS
|
|
|
|
Thermodynamics Question #2
|
gt5hz
|
1
|
321
|
September 21, 2009, 09:11:21 PM
by cliverlong
|
|
|
|
Combustion Stoiciometry
|
Naples
|
1
|
250
|
September 21, 2009, 08:56:32 PM
by Borek
|
|
|
|
Equation help?
|
needhelp123
|
1
|
218
|
September 21, 2009, 11:03:56 AM
by Fridushka
|
|
|
|
Iron (II) Sulfate Hexahydrate
|
bstapes99
|
6
|
763
|
September 21, 2009, 03:30:57 AM
by bstapes99
|
|
|
|
significant figures
|
Moss
|
4
|
328
|
September 21, 2009, 01:25:04 AM
by Borek
|
|
|
|
Naming Compounds (work check)
|
Hemidol
|
3
|
311
|
September 21, 2009, 12:38:24 AM
by Fridushka
|
|
|
|
Chemical Reaction
|
psychfan29
|
2
|
281
|
September 20, 2009, 10:27:40 PM
by billnotgatez
|
|
|
|
Stoichiometry Mole Problems
|
positiveion
|
4
|
343
|
September 20, 2009, 08:50:59 PM
by Borek
|
|
|
|
Paper chromatography: Which reagent is best to develop Mn2+?
|
jhansher78
|
1
|
527
|
September 20, 2009, 01:25:59 PM
by massagenj
|
|
|
|
SF2 vs OF2 Bond Angles
|
9V-SVL
|
1
|
625
|
September 20, 2009, 07:54:46 AM
by Schrödinger
|
|
|
|
In need of urgent help with dimensional analysis
|
lax400
|
4
|
397
|
September 20, 2009, 04:45:01 AM
by lax400
|
|
|
|
mass-mass stoich
|
Moss
|
5
|
336
|
September 19, 2009, 10:32:58 PM
by Mikiomiles23
|
|
|
|
acid-base question
|
kapital
|
1
|
293
|
September 19, 2009, 08:36:52 AM
by Borek
|
|
|
|
Stoichiometry Dilution Problem
|
positiveion
|
13
|
465
|
September 19, 2009, 08:35:19 AM
by Borek
|
|
|
|
electromagnetic spectrum
|
pie741
|
0
|
215
|
September 19, 2009, 06:53:50 AM
by pie741
|
|
|
|
What are the oxidation numbers of...
|
mustard
|
2
|
289
|
September 18, 2009, 09:56:49 PM
by Borek
|
|
|
|
finding the ph
|
Moss
|
5
|
349
|
September 18, 2009, 08:00:28 PM
by Moss
|
|
|
|
easy chemistry question
|
thewax
|
2
|
403
|
September 17, 2009, 02:15:56 PM
by renge ishyo
|
|
|
|
Percents to Kg?
|
Hemidol
|
5
|
362
|
September 17, 2009, 10:32:17 AM
by DrCMS
|
|
|
|
Chemical States
|
Hemidol
|
3
|
259
|
September 17, 2009, 07:51:02 AM
by MrTeo
|
|
|
|
Thermodynamics Question
|
gt5hz
|
1
|
242
|
September 17, 2009, 06:55:10 AM
by Borek
|
|
|
|
Emission Spectrums
|
Leeple Stays
|
3
|
354
|
September 16, 2009, 07:39:33 PM
by renge ishyo
|
|
|
|
NH4Br ionic compound?
|
Jules18
|
6
|
548
|
September 15, 2009, 08:59:33 PM
by Fridushka
|
|
|
|
Which of the two gases, Cl2 or Ar, exerts a greater pressure?
|
s3a
|
1
|
277
|
September 15, 2009, 06:54:56 PM
by MrTeo
|
|
|
|
Finding total pressure when valve is opened
|
s3a
|
0
|
248
|
September 15, 2009, 09:25:01 AM
by s3a
|
|
|
|
Calculating the root mean square speed
|
s3a
|
0
|
327
|
September 15, 2009, 09:20:00 AM
by s3a
|
|
|
|
How many atoms in sample?
|
s3a
|
2
|
368
|
September 15, 2009, 08:44:08 AM
by s3a
|
|
|
|
Another Stoichiometry Problem
|
positiveion
|
4
|
319
|
September 15, 2009, 06:20:32 AM
by DrCMS
|
|
|
|
RE: qualitative analysis
|
ggnub
|
0
|
189
|
September 15, 2009, 04:55:27 AM
by ggnub
|
|
|
|
Stoichiometry Limiting Reagent
|
positiveion
|
5
|
619
|
September 15, 2009, 04:38:02 AM
by Borek
|
|
|
|
Calculating concentration of solution
|
Moss
|
8
|
520
|
September 15, 2009, 04:27:45 AM
by DrCMS
|
|
|
|
write an equation including state symbols to show the first ionisation energy o
|
shanker
|
9
|
513
|
September 14, 2009, 08:33:09 PM
by Borek
|
|
|
|
explain the anomalies to the general trend in first ionisation energies that wou
|
shanker
|
1
|
275
|
September 14, 2009, 08:14:17 PM
by UG
|
|
|
|
strange reactions going on
|
tac631
|
0
|
195
|
September 14, 2009, 12:30:37 PM
by tac631
|
|
|
|
Help Identifying "Mystery" White Powders?
|
BobJr
|
0
|
275
|
September 14, 2009, 10:35:05 AM
by BobJr
|
|
|
|
Project - Partially Permeable Membranes and Chlorine
|
endtherapture51
|
0
|
205
|
September 14, 2009, 08:05:56 AM
by endtherapture51
|
|
|
|
Organic chemistry
|
kapital
|
5
|
482
|
September 14, 2009, 07:46:38 AM
by kapital
|
|
|
|
oxygen
|
muimerp
|
6
|
466
|
September 14, 2009, 03:14:35 AM
by muimerp
|
|
|
|
Simple grade 11 question
|
Sterling
|
2
|
328
|
September 13, 2009, 08:48:56 PM
by Borek
|
|
|
|
Finding Volume
|
Hemidol
|
5
|
378
|
September 13, 2009, 02:14:36 PM
by renge ishyo
|
|
|
|
Dimensional Analysis
|
Tsiih
|
2
|
348
|
September 13, 2009, 06:31:10 AM
by Tsiih
|
|
|
|
pH OF CHLORINE SALT
|
shanker
|
4
|
368
|
September 13, 2009, 05:50:53 AM
by Borek
|
|
|
|
Mass of aluminium oxide
|
shanker
|
0
|
249
|
September 13, 2009, 04:56:09 AM
by shanker
|
|
|
|
Burning Candle Chemistry Questions
|
darkbladin
|
0
|
287
|
September 13, 2009, 04:09:45 AM
by darkbladin
|
|
|
|
bromide ions produced from ?
|
shanker
|
5
|
394
|
September 13, 2009, 03:51:54 AM
by shanker
|
|
|
|
HELP ON DEFINITIONS
|
shanker
|
1
|
263
|
September 13, 2009, 03:45:06 AM
by Borek
|
|
|
|
MgS
|
ziggy777
|
3
|
401
|
September 13, 2009, 03:43:13 AM
by Borek
|
|
|
|
Anhydrous Sodium Carbonate question
|
J.C.
|
1
|
293
|
September 12, 2009, 10:15:47 PM
by Borek
|
|
|
|
Rates of reactions, help
|
matrix_the01
|
3
|
336
|
September 12, 2009, 06:11:03 PM
by orgoclear
|
|
|
|
Stoichiometry Problem
|
Tsiih
|
2
|
228
|
September 12, 2009, 06:10:56 PM
by Tsiih
|
|
|
|
how to recover CaCO3(s) ?
|
study
|
0
|
195
|
September 12, 2009, 06:06:32 PM
by study
|
|
|
|
high school chem
|
study
|
1
|
250
|
September 12, 2009, 05:48:53 PM
by matrix_the01
|
|
|
|
I dont know which answer is the right one
|
living2434
|
1
|
270
|
September 12, 2009, 10:15:31 AM
by Borek
|
|
|
|
Help me name this saturated hydrocarbon! :)
|
KurzickMushroom
|
4
|
379
|
September 12, 2009, 09:17:13 AM
by KurzickMushroom
|
|
|
|
Plz Correct me IF I'm WRONG
|
living2434
|
1
|
290
|
September 12, 2009, 07:44:25 AM
by Borek
|
|
|
|
ionic equations
|
vinuri
|
1
|
236
|
September 12, 2009, 06:47:07 AM
by Borek
|
|
|
|
Why does Fat dissolve in Gasoline ?
|
marshmallow_x3
|
2
|
361
|
September 11, 2009, 10:54:36 AM
by Don Shelly
|
|
|
|
Balancing using Half reaction method
|
jsmith613
|
4
|
610
|
September 11, 2009, 06:18:40 AM
by jsmith613
|
|
|
|
Natural sources
|
kapital
|
0
|
194
|
September 11, 2009, 05:56:41 AM
by kapital
|
|
|
|
ChEmIsTrY Help
|
ding0
|
3
|
353
|
September 11, 2009, 03:24:02 AM
by cliverlong
|
|
|
|
saturation point of potassium chloride
|
reefboy
|
0
|
205
|
September 10, 2009, 11:16:08 PM
by reefboy
|
|
|
|
Chemistry HW??
|
ethanwell
|
1
|
342
|
September 10, 2009, 08:47:56 PM
by Borek
|
|
|
|
electron configuration ex gold
|
matt1234
|
8
|
1056
|
September 10, 2009, 08:40:46 PM
by Borek
|
|
|
|
is diamond a molecule
|
jsmith613
|
18
|
756
|
September 10, 2009, 12:47:56 PM
by renge ishyo
|
|
|
|
Seperating Mixtures (NH4Cl + NaCl + SiO2)
|
MentalMystics
|
2
|
409
|
September 10, 2009, 11:26:36 AM
by billnotgatez
|
|
|
|
mass-mass stoich
|
Moss
|
2
|
296
|
September 10, 2009, 03:26:31 AM
by Moss
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significant figures
|
FAC208aussie
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1
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310
|
September 09, 2009, 11:49:15 PM
by Fridushka
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|
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Enthalpy of hydration of Copper Sulphate
|
fotofriends
|
0
|
229
|
September 09, 2009, 10:40:21 PM
by fotofriends
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|
|
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What will be the change in temperature of the water?
|
khemkhajon
|
3
|
343
|
September 09, 2009, 09:28:40 PM
by MrTeo
|
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Alloy Percent Composition Question
|
Z|2.Saki
|
1
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411
|
September 09, 2009, 08:46:19 PM
by Borek
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Rutherford Gold Foil Experiment
|
Joonifer
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1
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660
|
September 09, 2009, 07:08:24 PM
by UG
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second marathon problem (much more difficult)
|
sapphiregirl
|
22
|
816
|
September 09, 2009, 01:48:07 PM
by sapphiregirl
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|
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|
Combustion Of Ethanol
|
crichtonracing
|
3
|
4020
|
September 09, 2009, 12:49:58 AM
by staite
|
|
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Common Reactants In Half Reactions
|
12markkram34
|
4
|
383
|
September 08, 2009, 11:55:51 PM
by Fridushka
|
|
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Empirical/Molecular Formula from Combustion Equation
|
s3a
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2
|
602
|
September 08, 2009, 08:48:55 PM
by Fridushka
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|
|
|
questions about nucleophiles and base
|
kor
|
4
|
375
|
September 08, 2009, 08:14:40 PM
by kor
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|
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Which one is a base?
|
Jules18
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13
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656
|
September 08, 2009, 07:45:51 PM
by simpleton
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|
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Displacement equations
|
jsmith613
|
16
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658
|
September 08, 2009, 09:34:13 AM
by jsmith613
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|
|
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Verifying calculations for volume.
|
SimoneMeyer
|
15
|
499
|
September 08, 2009, 04:40:46 AM
by Borek
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|
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Need help with significant figures
|
bamcanfly
|
8
|
427
|
September 08, 2009, 03:42:32 AM
by Fridushka
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|
|
|
Condensed diagram for 1,3,5 - trimethylcyclohexane
|
SimoneMeyer
|
10
|
608
|
September 08, 2009, 02:26:05 AM
by cliverlong
|
|
|
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Stoichiometry
|
Naples
|
3
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313
|
September 08, 2009, 01:49:05 AM
by Naples
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drawing resonance structures
|
mandy9008
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1
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640
|
September 07, 2009, 10:18:11 PM
by Dan
|
|
|
|
How to disprove someone who claims methanol produces more heat than propanol.
|
SimoneMeyer
|
1
|
275
|
September 07, 2009, 08:43:45 PM
by Sam (UoN)
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|
|
|
Gas Law Problem: Dalton's Law and Kinetic Theory
|
teqniq
|
1
|
429
|
September 07, 2009, 04:37:59 PM
by Yggdrasil
|
|
|
|
How many isomers does C6H12 have?
|
SimoneMeyer
|
8
|
1443
|
September 07, 2009, 10:40:24 AM
by MrTeo
|
|
|
|
If milk has by-products, does lactose as well?
|
SimoneMeyer
|
4
|
332
|
September 07, 2009, 08:57:49 AM
by SimoneMeyer
|
|
|
|
Molecular and Empirical Formula, Gas Laws
|
Naples
|
4
|
376
|
September 07, 2009, 08:30:59 AM
by Naples
|
|
|
|
The Concept of Moles
|
positiveion
|
3
|
366
|
September 07, 2009, 07:09:27 AM
by renge ishyo
|
|
|
|
Kinetic theory: What happens to a ball brought on the moon?
|
SimoneMeyer
|
4
|
344
|
September 07, 2009, 07:03:45 AM
by renge ishyo
|
|
|
|
stoichiometry problems
|
amajum0073
|
1
|
309
|
September 06, 2009, 11:22:37 PM
by Dan
|
|
|
|
Quantitative Chemistry
|
positiveion
|
1
|
269
|
September 06, 2009, 08:43:04 PM
by Borek
|
|
|
|
homework - atomic structure
|
shanker
|
8
|
409
|
September 06, 2009, 10:28:49 AM
by renge ishyo
|
|
|
|
What is the polar opposite of Iron?
|
sahmoma
|
4
|
310
|
September 06, 2009, 10:20:46 AM
by renge ishyo
|
|
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|
Calculating Equations
|
SlimyBookworm
|
2
|
344
|
September 06, 2009, 08:52:07 AM
by Borek
|
|
|
|
Carbonic Acid + Calcium Carbonate - Figuring out concentration
|
Lolwot
|
4
|
614
|
September 06, 2009, 03:09:22 AM
by simpleton
|
|
|
|
Smoke Grenade help
|
Airsofter95
|
5
|
338
|
September 05, 2009, 09:33:43 PM
by Borek
|
|
|
|
How is it possible that the current lead levels differ from previous?
|
SimoneMeyer
|
5
|
345
|
September 05, 2009, 11:27:28 AM
by Arctic-Nation
|
|
|
|
electronegativity
|
marshmallow_x3
|
3
|
381
|
September 05, 2009, 08:00:11 AM
by marshmallow_x3
|
|
|
|
Marathon Problem
|
labec
|
30
|
1417
|
September 05, 2009, 12:15:46 AM
by DrCMS
|
|
|
|
Oxidation Numbers and Molecular Geometry
|
Naples
|
7
|
489
|
September 04, 2009, 11:36:03 PM
by UG
|
|
|
|
Need help getting some basic facts straight
|
x-ecutioner
|
2
|
273
|
September 04, 2009, 04:09:30 PM
by JGK
|
|
|
|
Mole balance question
|
toffeefan
|
2
|
321
|
September 04, 2009, 12:17:12 PM
by Borek
|
|
|
|
Simple test to detect amount of sulfur particles in the air?
|
Nuieve
|
0
|
225
|
September 04, 2009, 10:06:58 AM
by Nuieve
|
|
|
|
Speed of molecule movement.
|
SimoneMeyer
|
1
|
322
|
September 04, 2009, 07:55:01 AM
by Naples
|
|
|
|
hydrolyze esters
|
kapital
|
4
|
295
|
September 04, 2009, 07:01:08 AM
by kapital
|
|
|
|
Bad note taking, any chemist good at guessing?
|
mmax121
|
2
|
292
|
September 04, 2009, 05:10:56 AM
by Arctic-Nation
|
|
|
|
Why are some ions in aqueous solutions more attracted to water molecules?
|
tvirus
|
1
|
338
|
September 03, 2009, 04:28:21 PM
by ssadi
|
|
|
|
Q: Describe experiments to study the thermal decomp of group 1 and 2 nitrate
|
ssadi
|
2
|
247
|
September 03, 2009, 04:21:11 PM
by ssadi
|
|
|
|
Solid, liquid and gas particules.
|
SimoneMeyer
|
3
|
284
|
September 03, 2009, 11:10:40 AM
by cliverlong
|
|
|
|
Nomenclature List of Chemical Substances
|
Lonn
|
4
|
440
|
September 03, 2009, 10:15:23 AM
by renge ishyo
|
|
|
|
Hydronium concentration.
|
SimoneMeyer
|
2
|
267
|
September 03, 2009, 09:19:37 AM
by SimoneMeyer
|
|
|
|
H+ molarity vs. OH- molarity
|
Jules18
|
5
|
370
|
September 03, 2009, 06:09:56 AM
by Borek
|
|
|
|
Balancing (in acidic medium)
|
Jules18
|
3
|
328
|
September 03, 2009, 04:52:06 AM
by Jules18
|
|
|
|
Very hard problems abt limiting reagents/empirical formulas/conversions and more
|
SAV_Polite
|
7
|
634
|
September 03, 2009, 02:04:10 AM
by Fridushka
|
|
|
|
marathon problem
|
sapphiregirl
|
2
|
435
|
September 02, 2009, 08:48:59 PM
by Borek
|
|
|
|
Water filtration. Which steps are a chemical or physical change?
|
SimoneMeyer
|
8
|
509
|
September 02, 2009, 01:14:50 PM
by billnotgatez
|
|
|
|
What is the amide link
|
jsmith613
|
31
|
1134
|
September 02, 2009, 12:31:22 PM
by jsmith613
|
|
|
|
Ionic bonding- as it relates to tanning animal skins
|
oldtanner
|
8
|
511
|
September 02, 2009, 12:08:01 PM
by oldtanner
|
|
|
|
Bronsted-Lowry theory.
|
SimoneMeyer
|
2
|
273
|
September 02, 2009, 11:05:24 AM
by SimoneMeyer
|
|
|
|
Oxidation of Nitrogen family
|
Jules18
|
1
|
391
|
September 01, 2009, 12:44:13 PM
by 408
|
|
|
|
why do chlorine atoms in acid molecules lower the pH so much?
|
jsmith613
|
15
|
581
|
September 01, 2009, 12:34:29 PM
by bstapes99
|
|
|
|
measuring rate of a reaction
|
sweetnothings
|
1
|
250
|
September 01, 2009, 03:33:28 AM
by cliverlong
|
|
|
|
combustion
|
k8y
|
1
|
242
|
September 01, 2009, 03:02:54 AM
by cliverlong
|
|
|
|
Finding moles problem help?!
|
xxhautecouture
|
3
|
327
|
August 31, 2009, 07:08:25 AM
by bstapes99
|
|
|
|
d-Electrons of transition metals
|
cyrosceals
|
2
|
353
|
August 31, 2009, 05:34:48 AM
by Rudi
|
|
|
|
Self check Cubic Equation in a high school course?
|
rcole23
|
3
|
378
|
August 31, 2009, 04:56:50 AM
by rcole23
|
|
|
|
21st Century Science Task
|
Liko
|
4
|
343
|
August 30, 2009, 03:29:44 PM
by Liko
|
|
|
|
logarithms and scientific notation
|
houndmama
|
6
|
449
|
August 30, 2009, 01:11:13 PM
by Borek
|
|
|
|
basic sig fig problem
|
alwaysanewb
|
6
|
525
|
August 30, 2009, 11:29:00 AM
by Fridushka
|
|
|
|
Mole equations
|
shanker
|
3
|
662
|
August 29, 2009, 02:26:06 AM
by Fridushka
|
|
|
|
Chemical concentration
|
hmv
|
5
|
470
|
August 29, 2009, 01:59:35 AM
by cliverlong
|
|
|
|
luminol light intensity
|
martainthebox
|
2
|
300
|
August 29, 2009, 12:52:29 AM
by martainthebox
|
|
|
|
Bond structure question
|
cyrosceals
|
0
|
190
|
August 28, 2009, 11:32:23 PM
by cyrosceals
|
|
|
|
Factors affecting precipitate production?
|
tvirus
|
3
|
444
|
August 28, 2009, 07:59:32 PM
by renge ishyo
|
|
|
|
How does radiation hurt?
|
12markkram34
|
3
|
333
|
August 28, 2009, 06:26:49 AM
by renge ishyo
|
|
|
|
Query please
|
kfu
|
1
|
266
|
August 28, 2009, 03:35:15 AM
by Sam (UoN)
|
|
|
|
Some questions (probably ongoing)
|
nwkegan
|
4
|
369
|
August 27, 2009, 07:13:08 PM
by nwkegan
|
|
|
|
Homemade Sodium Hydroxide?
|
holmwood
|
6
|
577
|
August 27, 2009, 04:12:49 AM
by Sam (UoN)
|
|
|
|
Atom structure
|
kapital
|
4
|
465
|
August 26, 2009, 08:01:16 PM
by UG
|
|
|
|
"What is the amount of ions in a hot-dog?"
|
SimoneMeyer
|
10
|
429
|
August 26, 2009, 10:34:13 AM
by SimoneMeyer
|
|
|
|
Lewis formula for ,,X,, compound
|
Stephen
|
4
|
543
|
August 25, 2009, 11:59:01 PM
by UG
|
|
|
|
This Could Be A Silly Question - But I Need To Know
|
sonjaonline
|
1
|
326
|
August 25, 2009, 10:32:14 PM
by cliverlong
|
|
|
|
Will the substance precipitate?
|
hmv
|
5
|
358
|
August 25, 2009, 10:21:10 PM
by cliverlong
|
|
|
|
Electron cloud vs. Bohr's atommodel
|
Gargamel
|
3
|
481
|
August 25, 2009, 12:49:40 AM
by MrTeo
|
|
|
|
Re Oxidation/Corrosion
|
myhands2
|
1
|
301
|
August 24, 2009, 08:49:08 PM
by UG
|
|
|
|
Which has the lowest freezing point?
|
Computerized
|
3
|
498
|
August 24, 2009, 07:24:37 PM
by MrTeo
|
|
|
|
Hydrogen and Oxygen Question
|
Rhinostampede
|
2
|
412
|
August 24, 2009, 06:55:59 PM
by wilsonuid
|
|
|
|
Another question writtin wrong?
|
rcole23
|
2
|
270
|
August 24, 2009, 12:29:22 PM
by rcole23
|
|
|
|
Bond rotating
|
kapital
|
1
|
272
|
August 24, 2009, 11:53:45 AM
by Borek
|
|
|
|
Why gold is able to counter allergies to nickel.
|
SimoneMeyer
|
6
|
461
|
August 24, 2009, 11:50:04 AM
by SimoneMeyer
|
|
|
|
How to calculate the amount of atoms in 0.250 moles.
|
SimoneMeyer
|
14
|
723
|
August 24, 2009, 10:27:40 AM
by SimoneMeyer
|
|
|
|
Acid calculations
|
science fan
|
7
|
442
|
August 24, 2009, 01:16:19 AM
by Borek
|
|
|
|
Explain chemical reactions in terms of conjugate acid-base pairs
|
rashad
|
1
|
316
|
August 23, 2009, 07:54:45 PM
by cliverlong
|
|
|
|
Calculating Moles
|
spaztikmaverik
|
3
|
535
|
August 23, 2009, 10:27:56 AM
by Sam (UoN)
|
|
|
|
Electrolytic Cell
|
Red_CCF
|
2
|
346
|
August 23, 2009, 07:39:42 AM
by wpenrose
|
|
|
|
Equations Nitrates and Acid
|
Khan015
|
4
|
315
|
August 23, 2009, 07:02:27 AM
by System32
|
|
|
|
specific heat
|
anuvas123
|
4
|
420
|
August 22, 2009, 09:03:56 AM
by Mitch
|
|
|
|
Titration and conversion.
|
leena
|
6
|
457
|
August 22, 2009, 01:41:32 AM
by leena
|
|
|
|
Organic chemistry question on C6H5NH2
|
leena
|
6
|
508
|
August 21, 2009, 01:11:41 PM
by Sam (UoN)
|
|
|
|
Reduction using Carbon?
|
Cwin
|
2
|
356
|
August 21, 2009, 12:58:42 PM
by Mitch
|
|
|
|
What colour is As2S3 ?
|
leena
|
3
|
378
|
August 21, 2009, 12:56:53 PM
by Mitch
|
|
|
|
conceptual question on the oxides and hydrides of group 5 and group6
|
leena
|
3
|
531
|
August 21, 2009, 12:55:13 PM
by Mitch
|
|
|
|
help with blue smoke
|
pizzus
|
1
|
378
|
August 21, 2009, 12:50:49 PM
by Mitch
|
|
|
|
Halogen Alkane reactions help plz
|
stinkstinkstink111
|
2
|
354
|
August 21, 2009, 12:46:00 PM
by Mitch
|
|
|
|
What makes an element unique?
|
alirdz
|
2
|
546
|
August 21, 2009, 06:06:20 AM
by eggles
|
|
|
|
MOVED: Organic Synthesis Help
|
Borek
|
0
|
262
|
August 20, 2009, 09:23:18 PM
by Borek
|
|
|
|
Buffer PH Problem
|
Computerized
|
6
|
635
|
August 19, 2009, 10:00:11 PM
by Borek
|
|
|
|
calculating pH
|
simpleton
|
2
|
434
|
August 18, 2009, 11:28:53 PM
by simpleton
|
|
|
|
self check
|
rcole23
|
3
|
397
|
August 18, 2009, 10:16:44 PM
by MrTeo
|
|
|
|
Need your help about solubility coefficient
|
er.sonu.jangir
|
1
|
346
|
August 18, 2009, 10:07:12 AM
by jcjlf
|
|
|
|
Batteries
|
Red_CCF
|
2
|
395
|
August 16, 2009, 01:59:21 PM
by Red_CCF
|
|
|
|
nitrogen
|
mar
|
6
|
456
|
August 16, 2009, 12:09:39 PM
by Mitch
|
|
|
|
periodic properties
|
mar
|
1
|
320
|
August 16, 2009, 05:32:13 AM
by billnotgatez
|
|
|
|
periodic properties
|
mar
|
1
|
284
|
August 16, 2009, 05:31:53 AM
by billnotgatez
|
|
|
|
photovoltaic cell
|
mar
|
1
|
312
|
August 16, 2009, 05:31:36 AM
by billnotgatez
|
|
|
|
hydrides
|
mar
|
1
|
294
|
August 16, 2009, 05:30:40 AM
by billnotgatez
|
|
|
|
Solutions problem
|
Stephen
|
3
|
436
|
August 16, 2009, 01:08:40 AM
by Dan
|
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