June 13, 2021, 10:52:46 AM
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Ideal gas law question

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

3 Replies
353 Views
Last post December 16, 2020, 05:16:36 AM
by AWK
Flemish chemistry olympiad question

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

4 Replies
491 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
526 Views
Last post December 17, 2020, 02:50:55 AM
by yuheng_wu
d orbital splitting

Started by bluebunny2020 | Last post by bluebunny2020 March 09, 2020, 03:55:59 PM

0 Replies
892 Views
Last post March 09, 2020, 03:55:59 PM
by bluebunny2020
Question about coordinate covalent bond

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

2 Replies
1041 Views
Last post December 16, 2020, 02:06:23 PM
by yuheng_wu
Fast method to determine if a compound is polar or non polar

Started by kooryan | Last post by Helly January 24, 2020, 10:51:04 AM

2 Replies
1100 Views
Last post January 24, 2020, 10:51:04 AM
by Helly
How can I find Taiwan Chemistry Olympiad past papers?

Started by Ev3r3sT | Last post by Ev3r3sT July 02, 2019, 01:00:41 PM

0 Replies
1195 Views
Last post July 02, 2019, 01:00:41 PM
by Ev3r3sT
2020 US National Chemistry Olympiad

Started by trienebutdiene | Last post by trienebutdiene June 23, 2019, 11:00:06 AM

0 Replies
1478 Views
Last post June 23, 2019, 11:00:06 AM
by trienebutdiene
Train

Started by henlo | Last post by Borek March 05, 2019, 06:37:21 PM

1 Replies
1549 Views
Last post March 05, 2019, 06:37:21 PM
by Borek
Russian Olympiad Translation

Started by southernstars | Last post by AWK January 31, 2019, 03:28:14 AM

1 Replies
1582 Views
Last post January 31, 2019, 03:28:14 AM
by AWK
NO2 problem

Started by oque | Last post by mjc123 May 03, 2019, 07:55:23 AM

5 Replies
1882 Views
Last post May 03, 2019, 07:55:23 AM
by mjc123
National Chemistry Olympiad

Started by Bolt0612 | Last post by sjb March 12, 2019, 03:04:35 AM

1 Replies
1960 Views
Last post March 12, 2019, 03:04:35 AM
by sjb
Baltic Chemistry Competition (online)

Started by Kaspijs | Last post by Kaspijs October 11, 2020, 02:55:06 PM

3 Replies
2377 Views
Last post October 11, 2020, 02:55:06 PM
by Kaspijs
Would anyone be interested in a chemistry olympiad prep discord server?

Started by kimion | Last post by kimion March 03, 2019, 03:46:05 PM

3 Replies
2543 Views
Last post March 03, 2019, 03:46:05 PM
by kimion
The first problem

Started by Radu | Last post by Rutherford March 25, 2014, 04:06:02 PM

1 Replies
2727 Views
Last post March 25, 2014, 04:06:02 PM
by Rutherford
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