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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.

739 Posts
113 Topics

Last post by mjc123
in Re: NO2 problem
on May 03, 2019, 07:55:23 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
7574 Views
Last post April 05, 2009, 09:47:02 PM
by macman104
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
4169 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
2213 Views
Last post May 01, 2016, 05:13:31 PM
by mjc123
Acid-base titration question wording problem

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

4 Replies
2181 Views
Last post January 20, 2014, 08:26:36 PM
by delsaber8
Ba2+ + SO42- = BaSO4(s) Calculation

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

3 Replies
20128 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
4600 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
2271 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
4975 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
4807 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
1849 Views
Last post January 20, 2014, 03:09:46 AM
by Borek
6 Replies
4362 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
7430 Views
Last post August 03, 2006, 07:42:50 PM
by sam
Enthalpy change at high altitudes

Started by vanklik | Last post by Mitch December 23, 2009, 02:11:40 AM

1 Replies
2647 Views
Last post December 23, 2009, 02:11:40 AM
by Mitch
Exercice Of Thermochemistry Help Plz

Started by Rysix | Last post by billnotgatez March 07, 2015, 10:51:52 AM

1 Replies
1204 Views
Last post March 07, 2015, 10:51:52 AM
by billnotgatez
Final temperature of a mixture

Started by oceanmd | Last post by ARGOS++ April 18, 2008, 03:44:29 AM

3 Replies
4593 Views
Last post April 18, 2008, 03:44:29 AM
by ARGOS++
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