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help me! Mechanism organic chemistry reaction

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

3 Replies
5436 Views
Last post November 24, 2016, 10:35:24 PM
by Vidya
Mendeleev chemistry olympiad

Started by CrazyAssasin | Last post by lhpVietNam October 30, 2016, 03:33:06 PM

9 Replies
27215 Views
Last post October 30, 2016, 03:33:06 PM
by lhpVietNam
book for chemistry Olympiad

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

0 Replies
4113 Views
Last post October 30, 2016, 03:22:05 PM
by lhpVietNam
Colors of ions(aq) and substances

Started by klee256 | Last post by jasongnome September 30, 2016, 01:37:17 AM

5 Replies
7311 Views
Last post September 30, 2016, 01:37:17 AM
by jasongnome
Find Empirical Formula from Unit Cell

Started by vanderwaals | Last post by vanderwaals September 13, 2016, 05:42:54 PM

3 Replies
9316 Views
Last post September 13, 2016, 05:42:54 PM
by vanderwaals
Olympiad preparation summer camp

Started by flybird | Last post by Vidya September 12, 2016, 11:15:43 PM

3 Replies
5801 Views
Last post September 12, 2016, 11:15:43 PM
by Vidya
2015 Olympiad Questions

Started by stmoney | Last post by Vidya September 11, 2016, 11:54:15 PM

5 Replies
9685 Views
Last post September 11, 2016, 11:54:15 PM
by Vidya
source of inorganic chemistry problems?

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

2 Replies
6286 Views
Last post September 11, 2016, 11:44:04 PM
by Vidya
Iodine USNCO Problem

Started by vanderwaals | Last post by Borek September 10, 2016, 02:59:31 AM

4 Replies
5044 Views
Last post September 10, 2016, 02:59:31 AM
by Borek
{Reissert compounds}

Started by zhangtianzong « 1 2 » | Last post by Rutherford March 12, 2016, 03:29:03 AM

16 Replies
14827 Views
Last post March 12, 2016, 03:29:03 AM
by Rutherford
Solubility - Complex ion equilibrium problem

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

3 Replies
6730 Views
Last post March 10, 2016, 04:00:12 AM
by AWK
Olympiad preparation

Started by T | Last post by T March 07, 2016, 02:57:33 AM

4 Replies
6089 Views
Last post March 07, 2016, 02:57:33 AM
by T
Biochemistry in Olympiads

Started by ArcHos | Last post by Vidya March 01, 2016, 07:17:15 AM

2 Replies
4955 Views
Last post March 01, 2016, 07:17:15 AM
by Vidya
who we are? *delete me*

Started by Jose Luis Mg | Last post by Arkcon February 21, 2016, 06:43:35 AM

3 Replies
4259 Views
Last post February 21, 2016, 06:43:35 AM
by Arkcon
USNCO National Exam 2003 problem 43

Started by cjby69 | Last post by cjby69 January 10, 2016, 05:18:59 PM

2 Replies
4173 Views
Last post January 10, 2016, 05:18:59 PM
by cjby69
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