October 15, 2019, 05:40:01 AM
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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.

750 Posts
119 Topics

Last post by Kaspijs
in Re: Baltic Chemistry Com...
on October 09, 2019, 11:43:46 AM

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Can sb explain me how can this be solved?

Started by Romenumeral | Last post by Romenumeral Yesterday at 12:40:51 PM

13 Replies
225 Views
Last post Yesterday at 12:40:51 PM
by Romenumeral
Decomposition of Hydrogen Peroxide

Started by griley | Last post by chenbeier Yesterday at 09:50:15 AM

1 Replies
51 Views
Last post Yesterday at 09:50:15 AM
by chenbeier
pH calculation, why is calculated different?

Started by payata | Last post by payata October 13, 2019, 04:18:55 PM

3 Replies
108 Views
Last post October 13, 2019, 04:18:55 PM
by payata
Calculation in the right order (pH calculation, math)

Started by payata | Last post by AWK October 13, 2019, 01:38:23 PM

3 Replies
79 Views
Last post October 13, 2019, 01:38:23 PM
by AWK
Chemical Reactions help

Started by The_Kentucky_Kid | Last post by AWK October 13, 2019, 12:48:40 PM

1 Replies
60 Views
Last post October 13, 2019, 12:48:40 PM
by AWK
How many isomers are in this molecule?

Started by INeedSerotonin | Last post by chenbeier October 13, 2019, 11:12:21 AM

12 Replies
236 Views
Last post October 13, 2019, 11:12:21 AM
by chenbeier
What compound is it?

Started by INeedSerotonin | Last post by INeedSerotonin October 13, 2019, 09:03:21 AM

2 Replies
101 Views
Last post October 13, 2019, 09:03:21 AM
by INeedSerotonin
Determining the number of moles/percent by mass of MgCl2 in mixture

Started by Baksu888 | Last post by Borek October 12, 2019, 06:03:50 PM

3 Replies
120 Views
Last post October 12, 2019, 06:03:50 PM
by Borek
How can I find the pH of this salt?

Started by INeedSerotonin | Last post by INeedSerotonin October 12, 2019, 04:17:21 PM

5 Replies
157 Views
Last post October 12, 2019, 04:17:21 PM
by INeedSerotonin
How does the MoO4 serve as a catalyst in the iodine clock reaction

Started by ferretman25 | Last post by AWK October 11, 2019, 09:01:51 AM

1 Replies
111 Views
Last post October 11, 2019, 09:01:51 AM
by AWK
Can someone explain the steps of a problem I solved?

Started by AppleSnooop | Last post by Borek October 11, 2019, 03:08:43 AM

1 Replies
106 Views
Last post October 11, 2019, 03:08:43 AM
by Borek
I would like to know convert from umol/l to mg/l for oxigen

Started by tirengarfio | Last post by AWK October 10, 2019, 03:58:26 PM

4 Replies
211 Views
Last post October 10, 2019, 03:58:26 PM
by AWK
Which one of these compounds won't discolor KMnO4?

Started by INeedSerotonin | Last post by AWK October 08, 2019, 02:17:38 PM

1 Replies
101 Views
Last post October 08, 2019, 02:17:38 PM
by AWK
How do I solve this equation (acetylsalicylic acid)?

Started by INeedSerotonin | Last post by AWK October 08, 2019, 01:30:35 PM

3 Replies
120 Views
Last post October 08, 2019, 01:30:35 PM
by AWK
Any suggestions for a high school research project? At least in which field?

Started by idk | Last post by Enthalpy October 07, 2019, 05:46:13 PM

1 Replies
111 Views
Last post October 07, 2019, 05:46:13 PM
by Enthalpy
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