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Chemistry Olympiad and other competitions

Preparing to Chemistry Olympiad or any other competition? That's the place to ask your question.

752 Posts
120 Topics

Last post by oque
in Re: Atom and Ionic Radiu...
on October 21, 2019, 12:09:25 AM

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help find reaction and color on this

Started by syawiwi | Last post by AWK October 21, 2019, 12:41:26 PM

1 Replies
57 Views
Last post October 21, 2019, 12:41:26 PM
by AWK
Flavour embedded plastic.

Started by JoshPiF | Last post by Corribus November 15, 2019, 10:28:11 AM

1 Replies
58 Views
Last post November 15, 2019, 10:28:11 AM
by Corribus
Methyl Hydrogens - NMR

Started by rogixmalix | Last post by sjb November 16, 2019, 04:40:57 AM

1 Replies
60 Views
Last post November 16, 2019, 04:40:57 AM
by sjb
Thermochemical Data for FeSCN2+

Started by isaackrementsov | Last post by isaackrementsov November 10, 2019, 08:40:59 PM

0 Replies
65 Views
Last post November 10, 2019, 08:40:59 PM
by isaackrementsov
Lab Precipitated Formed?

Started by GengiMane | Last post by billnotgatez October 20, 2019, 08:52:27 PM

1 Replies
66 Views
Last post October 20, 2019, 08:52:27 PM
by billnotgatez
What is the capacity of the calorimeter?

Started by Pepito87 | Last post by Borek November 07, 2019, 03:26:34 PM

1 Replies
66 Views
Last post November 07, 2019, 03:26:34 PM
by Borek
stoichiometry: percentage yield

Started by 073735557 | Last post by chenbeier Yesterday at 11:12:54 AM

1 Replies
66 Views
Last post Yesterday at 11:12:54 AM
by chenbeier
Will a catalyst ever stop increasing the rate of reaction?

Started by ferretman25 | Last post by AWK November 12, 2019, 04:13:09 PM

1 Replies
67 Views
Last post November 12, 2019, 04:13:09 PM
by AWK
Find solute of Molecular Weight

Started by jearsonbgomez@yahoo.com | Last post by billnotgatez November 15, 2019, 11:11:52 AM

1 Replies
72 Views
Last post November 15, 2019, 11:11:52 AM
by billnotgatez
Calibration graph

Started by KezzerN | Last post by AWK October 28, 2019, 04:05:44 PM

1 Replies
73 Views
Last post October 28, 2019, 04:05:44 PM
by AWK
soxhlet extractor thimbles

Started by Frater EIE | Last post by hypervalent_iodine November 13, 2019, 07:20:25 PM

1 Replies
74 Views
Last post November 13, 2019, 07:20:25 PM
by hypervalent_iodine
Chemistry 3 questions help

Started by Dhisbdj | Last post by Dhisbdj October 28, 2019, 02:57:05 PM

2 Replies
75 Views
Last post October 28, 2019, 02:57:05 PM
by Dhisbdj
Is there anyway to memorize common polyatomic ions easily?

Started by AppleSnooop | Last post by isaackrementsov November 11, 2019, 12:45:27 AM

1 Replies
75 Views
Last post November 11, 2019, 12:45:27 AM
by isaackrementsov
Copper Electroplating - may have used a stainless steel bolt - What now?

Started by mdeveraux | Last post by mdeveraux October 03, 2019, 02:47:48 PM

0 Replies
80 Views
Last post October 03, 2019, 02:47:48 PM
by mdeveraux
Simple method of chemical synthesis of citric acid?

Started by Mati | Last post by AWK October 28, 2019, 08:11:25 AM

1 Replies
81 Views
Last post October 28, 2019, 08:11:25 AM
by AWK
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