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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.

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Last post by antonioro00071
in Re: Contest problem I do...
on April 03, 2024, 07:36:00 AM

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3 SIMPLE GRAMS AND MOLES QUESTION( PLEASE HELP ANSWER)

Started by BrooklynsMVP | Last post by macman104 April 05, 2009, 09:47:02 PM

9 Replies
9638 Views
Last post April 05, 2009, 09:47:02 PM
by macman104
a deviation in answer

Started by chimia12 | Last post by chimia12 November 14, 2020, 03:19:42 AM

2 Replies
1349 Views
Last post November 14, 2020, 03:19:42 AM
by chimia12
A hydrocarbon compound contains 80.1 percent C and 19.9 percent H and has a mol

Started by Tom | Last post by jdurg June 04, 2004, 11:54:57 AM

1 Replies
6222 Views
Last post June 04, 2004, 11:54:57 AM
by jdurg
A question about equilibrium

Started by toxicgun | Last post by mjc123 May 01, 2016, 05:13:31 PM

3 Replies
4372 Views
Last post May 01, 2016, 05:13:31 PM
by mjc123
Acid and basic solutions. PH and pOH calculations.

Started by PotatoMax103 | Last post by AWK March 25, 2020, 02:19:28 AM

1 Replies
1424 Views
Last post March 25, 2020, 02:19:28 AM
by AWK
Acid-base titration question wording problem

Started by delsaber8 | Last post by delsaber8 January 20, 2014, 08:26:36 PM

4 Replies
3667 Views
Last post January 20, 2014, 08:26:36 PM
by delsaber8
attraction between a common electron pair.

Started by Timson28 | Last post by Timson28 September 15, 2020, 11:01:50 AM

0 Replies
1056 Views
Last post September 15, 2020, 11:01:50 AM
by Timson28
Ba2+ + SO42- = BaSO4(s) Calculation

Started by jiunshan | Last post by AWK February 08, 2006, 02:51:24 AM

3 Replies
33037 Views
Last post February 08, 2006, 02:51:24 AM
by AWK
calculating H30+ and OH- in .22M KOH

Started by art1 | Last post by Borek May 25, 2006, 09:10:35 AM

3 Replies
6033 Views
Last post May 25, 2006, 09:10:35 AM
by Borek
Charging lithium-ion batteries

Started by Pbandjelly | Last post by Enthalpy July 08, 2015, 06:13:44 AM

5 Replies
3888 Views
Last post July 08, 2015, 06:13:44 AM
by Enthalpy
chitosan solution preparation

Started by Aeisyah Abas | Last post by Arkcon June 26, 2013, 07:34:51 PM

3 Replies
6667 Views
Last post June 26, 2013, 07:34:51 PM
by Arkcon
Delta G Naught and spontaneity

Started by galpinj | Last post by galpinj January 15, 2016, 09:32:43 PM

7 Replies
8229 Views
Last post January 15, 2016, 09:32:43 PM
by galpinj
effect of pressure on melting point of a substance

Started by Monte | Last post by Borek January 20, 2014, 03:09:46 AM

3 Replies
3102 Views
Last post January 20, 2014, 03:09:46 AM
by Borek
6 Replies
6267 Views
Last post April 04, 2013, 02:51:08 PM
by curiouscat
electrolysis of PdCl2 (aq ) and AgNO3 (aq) solutions .masses of Pd and Ag ?

Started by sam | Last post by sam August 03, 2006, 07:42:50 PM

5 Replies
9828 Views
Last post August 03, 2006, 07:42:50 PM
by sam
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