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

source of inorganic chemistry problems?

Started by LemonCake | Last post by Vidya September 11, 2016, 11:44:04 PM

book for chemistry Olympiad

Started by lhpVietNam | Last post by lhpVietNam October 30, 2016, 03:22:05 PM

help me! Mechanism organic chemistry reaction

Started by lhpVietNam | Last post by Vidya November 24, 2016, 10:35:24 PM

Help with these Olympiad questions?

Started by Loael | Last post by Loael March 16, 2013, 07:43:40 PM

Please help me understand fusion.

Started by Loael | Last post by Sunil Simha March 24, 2013, 08:37:42 AM

Re: 2nd problem IChO

Started by momoho | Last post by Rutherford April 13, 2014, 11:07:59 AM

25th IChO problem cefalotin

Started by momoho | Last post by momoho April 11, 2014, 04:23:01 AM

national problems

Started by momoho « 1 2 » | Last post by Borek June 26, 2014, 04:03:17 PM

cambridge challenge (c3l6)

Started by momoho | Last post by Big-Daddy April 22, 2014, 05:26:40 PM

chemistry exams

Started by momoho | Last post by Vidya May 30, 2015, 06:20:19 AM

icho 2014 participants

Started by momoho | Last post by pocantheses October 27, 2014, 10:13:32 PM

electrochemistry question

Started by momoho | Last post by burlogata December 10, 2014, 04:38:34 PM

Resources for Olympiad Preparation?

Started by narak1149 | Last post by Big-Daddy March 26, 2014, 08:44:37 PM

Solubility - Complex ion equilibrium problem

Started by nefsicle | Last post by AWK March 10, 2016, 04:00:12 AM