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Jan16-12 Greg Bernhardt
chemistry, websites Sticky Thread Pinned: Good chemistry websites ( 1 2 3 ... Last)
I think that these links can be interesting: PeriodicTable: http://www.webelements.com/...
Y 04:40 PM
Andrew Tsvyk
116 149,961
chemical, latex, typeset Sticky Thread Pinned: Chemical LaTeX typeset ( 1 2 3 ... Last)
Physicsforums now has a very cool feature, which enables complex typesetting for formulas or equations! A tutorial...
Jul7-13 04:53 PM
jackmell
64 157,315
Illegal/Dangerous Activities: Explicit "how to" discussions of illegal and/or dangerous activities, or posts...
Jul31-07 05:03 PM
chemisttree
0 41,679
what difference,if any are expected between the chemical reactions of Cl 35 and Cl 37? I'm not sure how to attempt...
Oct18-11 03:59 PM
geej77
4 1,509
Hi guys. Imagine how dumb I feel for never having heard of this equation before today. I have a serious exam coming up...
Oct18-11 03:07 PM
Borek
3 1,567
I really really need information on Conway microdiffusion analysis. I know that there is a book but I can't find it...
Oct18-11 01:05 PM
sharif_k
3 6,586
I'm trying to calculate the mass of a chemical (DMSO) and from a NMR spectrum of water and DMSO. I have the value of...
Oct18-11 10:38 AM
oli8819
0 792
I'm in an intro chem class right now and I honestly have no clue where I was when they talked about this BUT here...
Oct18-11 02:42 AM
Borek
1 1,540
i just started studying quantum mechanics in my college.....i asked a number of teachers and seniors that why psi(ψ)...
Oct17-11 01:47 PM
mcbud
7 2,737
I got a question : Why is the nucleon of Chlorine 35.5 ? Why is is not a whole number ?
Oct17-11 12:28 PM
Jadaav
10 1,600
Is there sth like rydberg formula for Molecular ionization?
Oct17-11 02:38 AM
DrDu
2 977
I read that all ligands are Lewis bases but I then read that the number of anionic ligands attached to a metal will...
Oct17-11 02:37 AM
DGJNAc
1 2,370
Could somone explain why dichloromethane has a dipole moment of 1.60 D and how you get this measurement?
Oct16-11 10:11 PM
jtbright
0 1,667
Hello, I am a first year student majoring in chemistry. I really like it and I'm very interested in the subject, but I...
Oct16-11 09:47 PM
symbolipoint
2 2,499
At what temperatures do alpha-linoleic acid, DHA and EPA oxidize? I've tried using Google scholar to find such info...
Oct15-11 11:08 AM
Borek
1 1,887
I have the following doubts while understanding the concept. Please help me solve them :- (1) What is a precipitate...
Oct15-11 11:06 AM
Borek
1 1,999
When sodium metal is added to ammonia, some of the sodium dissolves. Each of the dissolving sodium atoms loses an...
Oct15-11 09:22 AM
AnthonyCChem
0 1,460
Hello! We will be given three bottles of an unknown organic compound, two will be a pure substance and the third...
Oct15-11 03:42 AM
Anna55
3 1,964
I would like to oxidize suspended elemental sulfur to sulfate in a solution. Any suggestions?
Oct14-11 09:44 AM
chemisttree
1 1,351
Hello, This is a matter I have been having some difficulties with for the past few days. My question: How is it...
Oct14-11 03:08 AM
DrStupid
1 2,116
tert-butyl bromide reacts with HOH to give HBr and the corresponding alcohol , C C-C-C OH But tert-butyl...
Oct13-11 04:49 PM
DGJNAc
1 1,455
Hi l have this question in my mind l never found a good reference for the answer . my question is to know how did...
Oct12-11 02:15 PM
lssam
6 1,807
When 2 atoms bond, do all their atomic orbitals combine, or is it just the bonding orbitals that combine? For example...
Oct12-11 01:44 PM
mcbud
7 2,988
Why I can't calculate the same answer as the solution below? I use the value as what the below solution showed. Q:...
Oct12-11 07:40 AM
Borek
1 1,648
In the permanganate ion, manganese is in the +7 oxidation state, therefore it is a d0 ion. I thought that d0 and d10...
Oct11-11 06:08 PM
CrimpJiggler
0 3,688
What are the factors that determine the strength of an Ionic bond? Taking the example of LiF and K20, why does LiF...
Oct11-11 07:39 AM
Qaztgbe
6 4,309
Hi, My textbook is being a bit ambiguous and indecisive, in terms of properly defining something. Can...
Oct10-11 06:59 PM
Yanick
1 1,371
I've been reading about calculating dissolved gas concentrations in water at varying temperature and salinities using...
Oct10-11 05:51 PM
Borek
11 4,014
I need some help with understanding reducing agent selectivity. I recently did a lab where we used two reducing agents...
Oct10-11 05:23 PM
Yanick
5 4,092
What exactly is a double displacement reaction? I searched my textbook for the term--yes, I did check the glossary...
Oct10-11 05:02 PM
Yanick
1 1,509
Hello! How to calculate the hybridisation in carbon compounds? Most of the time whenever i try to find out the...
Oct9-11 11:36 AM
mishrashubham
20 5,952
What are some dangerous chemical compounds and substances that manufactures put into products that you are aware of...
Oct9-11 07:55 AM
256bits
12 3,123
Hi, First, I was wondering, can electrolytic solution only be produced if its solute is an ionic compound? And,...
Oct9-11 03:10 AM
Borek
1 1,176
if i have oxygen + photons => products if this is an elementary process, is this a uni-molecular process or a...
Oct8-11 11:34 AM
juanrga
3 1,809
So we've all seen the pictures of orbitals in chemistry textbooks. You know, the sphere for an s orbital, the two...
Oct8-11 10:26 AM
juanrga
10 4,467
I am trying to find information about how molecular sieves (5 angstroms) affect a mixture if used in excess...
Oct7-11 06:55 PM
Notwen7
0 1,361
Are there any areas of Chemistry that are dedicated to the study of elementary particles e.g.the Standard Model?
Oct7-11 02:21 PM
juanrga
12 4,501
I'm just wondering if someone can point me in the right direction here.. or maybe I'm just crazy lol. I'm a big...
Oct6-11 01:00 PM
turbo
2 1,467
I recently studied that equilibrium constant is independent of concentration. But if you multiply both sides of...
Oct6-11 10:57 AM
Borek
1 923
How do electrons revolve around in molecule bonded by covalent bonds? An electron revolves around one nucleus. But if...
Oct6-11 08:29 AM
Bloodthunder
5 3,423
Hello everybody, I am going to face an exam and I am learning Chemistry. I am confused with the term Subshell ....
Oct5-11 10:55 PM
Bloodthunder
1 1,517
If its possible at all
Oct5-11 10:54 PM
Bloodthunder
1 3,797
Hydrogen is such a peculiar element. It is placed in Group 1 of the periodic table. I can't find the reason why is it...
Oct5-11 08:09 AM
Borek
4 1,601

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