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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.

767 Posts
124 Topics

Last post by Babcock_Hall
in Re: I need help with thi...
on June 14, 2020, 11:10:55 PM

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Crook ink disappearing

Started by Kongasm | Last post by sjb July 03, 2020, 10:38:04 AM

1 Replies
110 Views
Last post July 03, 2020, 10:38:04 AM
by sjb
polymer and enzyme filtration

Started by NiccUnamebro | Last post by MNIO June 30, 2020, 04:00:43 AM

11 Replies
390 Views
Last post June 30, 2020, 04:00:43 AM
by MNIO
1 Replies
100 Views
Last post June 30, 2020, 02:35:43 AM
by MNIO
Tea Tree Oil and Water Emulsifier

Started by boopity | Last post by boopity June 29, 2020, 12:37:03 PM

0 Replies
77 Views
Last post June 29, 2020, 12:37:03 PM
by boopity
1 Replies
90 Views
Last post June 28, 2020, 03:14:07 AM
by Borek
EDTA Back Titration with Ca and MgCl

Started by snoopmesh | Last post by chenbeier June 24, 2020, 04:08:05 PM

1 Replies
130 Views
Last post June 24, 2020, 04:08:05 PM
by chenbeier
Ocean Acidification

Started by ayderay | Last post by ayderay June 23, 2020, 09:27:47 AM

2 Replies
125 Views
Last post June 23, 2020, 09:27:47 AM
by ayderay
Is hydrogen sulphide polar or non-polar?

Started by Zoidberg1201 | Last post by Enthalpy June 22, 2020, 04:16:02 PM

2 Replies
203 Views
Last post June 22, 2020, 04:16:02 PM
by Enthalpy
Practice Exam Request?

Started by GenericUsername69 | Last post by sjb June 22, 2020, 11:34:20 AM

1 Replies
125 Views
Last post June 22, 2020, 11:34:20 AM
by sjb
Some questions about ions and covalent bonding

Started by RimuruNava | Last post by chenbeier June 20, 2020, 10:18:20 AM

1 Replies
134 Views
Last post June 20, 2020, 10:18:20 AM
by chenbeier
calculation: mass of oxygen in water

Started by txxplc110 | Last post by Borek June 16, 2020, 11:06:43 AM

3 Replies
309 Views
Last post June 16, 2020, 11:06:43 AM
by Borek
A serious chemistry problem for a bad chemistry student.

Started by gryva | Last post by MNIO June 10, 2020, 06:46:52 PM

4 Replies
326 Views
Last post June 10, 2020, 06:46:52 PM
by MNIO
Urgent stoichiometry , ratio of compunds

Started by ru mi | Last post by chenbeier June 09, 2020, 11:12:41 AM

3 Replies
315 Views
Last post June 09, 2020, 11:12:41 AM
by chenbeier
Enthalpy

Started by Gyvfdc | Last post by mjc123 June 08, 2020, 11:48:01 AM

1 Replies
206 Views
Last post June 08, 2020, 11:48:01 AM
by mjc123
Cellular Respiration

Started by Erin_cell | Last post by Babcock_Hall June 08, 2020, 09:40:58 AM

1 Replies
268 Views
Last post June 08, 2020, 09:40:58 AM
by Babcock_Hall
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