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Chemistry Olympiads - links to national competitions problems

Started by Borek « 1 2 » | Last post by jessiemariadass21 July 21, 2019, 06:14:32 AM

18 Replies
44443 Views
Last post July 21, 2019, 06:14:32 AM
by jessiemariadass21
Chemistry Olympiads forum - initial remarks

Started by Borek | Last post by Rutherford March 22, 2014, 12:50:00 PM

1 Replies
10812 Views
Last post March 22, 2014, 12:50:00 PM
by Rutherford
Flemish chemistry olympiad question

Started by yuheng_wu | Last post by AWK December 17, 2020, 03:11:12 AM

4 Replies
242 Views
Last post December 17, 2020, 03:11:12 AM
by AWK
Can someone tell me what I'm doing wrong here? (calculation)

Started by yuheng_wu | Last post by yuheng_wu December 17, 2020, 02:50:55 AM

6 Replies
263 Views
Last post December 17, 2020, 02:50:55 AM
by yuheng_wu
Question about coordinate covalent bond

Started by yuheng_wu | Last post by yuheng_wu December 16, 2020, 02:06:23 PM

2 Replies
320 Views
Last post December 16, 2020, 02:06:23 PM
by yuheng_wu
Ideal gas law question

Started by yuheng_wu | Last post by AWK December 16, 2020, 05:16:36 AM

3 Replies
175 Views
Last post December 16, 2020, 05:16:36 AM
by AWK
MOVED: Help with bonding question?

Started by Borek | Last post by Borek December 08, 2020, 10:59:40 AM

0 Replies
153 Views
Last post December 08, 2020, 10:59:40 AM
by Borek
MOVED: Colors of ions(aq) and substances

Started by Borek | Last post by Borek December 08, 2020, 10:57:23 AM

0 Replies
89 Views
Last post December 08, 2020, 10:57:23 AM
by Borek
MOVED: help me! Mechanism organic chemistry reaction

Started by Borek | Last post by Borek December 08, 2020, 10:56:13 AM

0 Replies
81 Views
Last post December 08, 2020, 10:56:13 AM
by Borek
MOVED: Nitration of o-cresol

Started by Borek | Last post by Borek December 08, 2020, 10:55:42 AM

0 Replies
75 Views
Last post December 08, 2020, 10:55:42 AM
by Borek
MOVED: Chemical formula

Started by Borek | Last post by Borek December 08, 2020, 10:55:03 AM

0 Replies
73 Views
Last post December 08, 2020, 10:55:03 AM
by Borek
MOVED: Analytical chemistry

Started by Borek | Last post by Borek December 08, 2020, 10:53:10 AM

0 Replies
73 Views
Last post December 08, 2020, 10:53:10 AM
by Borek
MOVED: Organic Reaction

Started by Borek | Last post by Borek December 08, 2020, 10:52:38 AM

0 Replies
68 Views
Last post December 08, 2020, 10:52:38 AM
by Borek
MOVED: Kinetics

Started by Borek | Last post by Borek December 08, 2020, 10:52:15 AM

0 Replies
72 Views
Last post December 08, 2020, 10:52:15 AM
by Borek
MOVED: Atom and Ionic Radius

Started by Borek | Last post by Borek December 08, 2020, 10:51:58 AM

0 Replies
69 Views
Last post December 08, 2020, 10:51:58 AM
by Borek
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