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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
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Last post by dolphinsea14
in Where I can find the sol...
on March 08, 2022, 03:44:57 PM

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Some questions regarding pH, bases and acids

Started by Shaderxd | Last post by Borek December 01, 2022, 03:58:56 AM

1 Replies
226 Views
Last post December 01, 2022, 03:58:56 AM
by Borek
Doubt CR2032 battery

Started by barretff7 | Last post by barretff7 November 27, 2022, 06:25:41 PM

13 Replies
577 Views
Last post November 27, 2022, 06:25:41 PM
by barretff7
Calculate the oxidation state of Cr(ClO3)3 and others

Started by al220007 | Last post by Hunter2 November 23, 2022, 12:10:19 PM

4 Replies
285 Views
Last post November 23, 2022, 12:10:19 PM
by Hunter2
Finding required volume

Started by NotSoBrightGuy | Last post by Borek November 13, 2022, 10:46:11 AM

3 Replies
357 Views
Last post November 13, 2022, 10:46:11 AM
by Borek
Identifying Metals and vitamins in a substance

Started by Maxim | Last post by Borek November 03, 2022, 06:17:48 PM

1 Replies
387 Views
Last post November 03, 2022, 06:17:48 PM
by Borek
Why in the equation E=v/d E units are coulomb

Started by darkwizard267787 | Last post by mjc123 October 28, 2022, 03:06:53 PM

3 Replies
481 Views
Last post October 28, 2022, 03:06:53 PM
by mjc123
Standard Molar Enthalpies of Chemicals

Started by jasian | Last post by Enthalpy October 24, 2022, 07:01:47 AM

2 Replies
393 Views
Last post October 24, 2022, 07:01:47 AM
by Enthalpy
Explain metaloid bonds without words

Started by Alifor | Last post by Borek October 20, 2022, 08:30:54 AM

1 Replies
377 Views
Last post October 20, 2022, 08:30:54 AM
by Borek
Hi I have tons of questions

Started by metromondaze | Last post by Borek October 19, 2022, 03:13:39 AM

1 Replies
384 Views
Last post October 19, 2022, 03:13:39 AM
by Borek
3 Replies
449 Views
Last post October 18, 2022, 06:19:06 PM
by Borek
Evaporating water from a copper (II) sulfate pentahydrate solution

Started by jasian | Last post by Borek October 17, 2022, 02:56:28 AM

1 Replies
630 Views
Last post October 17, 2022, 02:56:28 AM
by Borek
Can someone help with this question?

Started by darkwizard267787 | Last post by Corribus September 28, 2022, 09:33:35 AM

11 Replies
2687 Views
Last post September 28, 2022, 09:33:35 AM
by Corribus
molecular formula of compound

Started by auksas | Last post by Borek September 27, 2022, 11:09:45 AM

7 Replies
1873 Views
Last post September 27, 2022, 11:09:45 AM
by Borek
Sodium Polyacrylate and Water attraction

Started by adi | Last post by Enthalpy September 26, 2022, 06:00:41 AM

1 Replies
1250 Views
Last post September 26, 2022, 06:00:41 AM
by Enthalpy
Reaction rates chem 12

Started by Shay101789 | Last post by Borek September 24, 2022, 03:25:29 PM

3 Replies
1376 Views
Last post September 24, 2022, 03:25:29 PM
by Borek
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