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How Much Copper Is in the Penny

Started by Punintended | Last post by jdurg July 18, 2005, 02:47:59 PM

7 Replies
22419 Views
Last post July 18, 2005, 02:47:59 PM
by jdurg
Acidity across a period and down a group

Started by Needaask | Last post by Needaask March 25, 2013, 09:56:59 AM

4 Replies
22588 Views
Last post March 25, 2013, 09:56:59 AM
by Needaask
Determing the Ka for acetic acid

Started by alley45 | Last post by shawen January 08, 2014, 06:28:03 PM

6 Replies
22630 Views
Last post January 08, 2014, 06:28:03 PM
by shawen
what is the importance of stoichiometry??

Started by stacey | Last post by Donaldson Tan November 28, 2004, 05:26:55 PM

4 Replies
22820 Views
Last post November 28, 2004, 05:26:55 PM
by Donaldson Tan
Combustion of unkown compound

Started by aduke « 1 2 » | Last post by sdekivit July 29, 2005, 04:18:03 PM

15 Replies
22958 Views
Last post July 29, 2005, 04:18:03 PM
by sdekivit
Find the enthalpy of neutralization, ∆H , in kJ/mol

Started by s3a | Last post by MrTeo September 30, 2009, 12:47:05 AM

5 Replies
23086 Views
Last post September 30, 2009, 12:47:05 AM
by MrTeo
PV=nRT

Started by vmaniscalco | Last post by Donaldson Tan March 03, 2006, 06:51:20 PM

5 Replies
23106 Views
Last post March 03, 2006, 06:51:20 PM
by Donaldson Tan
ClO4- Ion Lewis Dot and Resonance Structures

Started by anonhelpplz | Last post by Donaldson Tan November 02, 2005, 08:46:54 PM

1 Replies
23162 Views
Last post November 02, 2005, 08:46:54 PM
by Donaldson Tan
Molecular Mass and Formula Unit Mass

Started by happyanimesh | Last post by enahs August 23, 2008, 11:23:27 AM

1 Replies
23205 Views
Last post August 23, 2008, 11:23:27 AM
by enahs
Quick Question : Is HOH or [H2O] equilvilant to H(OH)

Started by Pretzel | Last post by Donaldson Tan December 26, 2006, 06:30:05 PM

11 Replies
23304 Views
Last post December 26, 2006, 06:30:05 PM
by Donaldson Tan
Determining Oxidation Number

Started by Bridget Jones | Last post by woodiermonkey March 21, 2010, 01:21:11 AM

4 Replies
23304 Views
Last post March 21, 2010, 01:21:11 AM
by woodiermonkey
How many types of chemical bond in ice ?

Started by fishyuyue | Last post by Alpha-Omega January 19, 2008, 06:04:14 PM

9 Replies
23408 Views
Last post January 19, 2008, 06:04:14 PM
by Alpha-Omega
Finding pH in terms of Ka1 and Ka2 of a polyprotic acid

Started by nihil.ad.rem | Last post by Borek February 16, 2008, 05:13:43 AM

2 Replies
23428 Views
Last post February 16, 2008, 05:13:43 AM
by Borek
HC2H3O2 + NaC2H3O2 ==> ???

Started by vnveteran | Last post by donaldjeo May 08, 2010, 07:40:34 AM

3 Replies
23440 Views
Last post May 08, 2010, 07:40:34 AM
by donaldjeo
1 Replies
23454 Views
Last post May 30, 2010, 04:18:50 AM
by Borek
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