Search the web
Sign In
New User? Sign Up
thechemistrycluster · The Chemistry Cluster - A place to talk of the great world of Chemistry...
? Already a member? Sign in to Yahoo!

Yahoo! Groups Tips

Did you know...
Show off your group to the world. Share a photo of your group with us.

Best of Y! Groups

   Check them out and nominate your group.
Having problems with message search? Fill out this form to ensure your group is one of the first to be migrated to the new message search system.

Messages

  Messages Help
Advanced
Messages 4872 - 4901 of 13932   Oldest  |  < Older  |  Newer >  |  Newest
Messages: Simplify | Expand   (Group by Topic) Author Sort by Date ^
4872
heyy everyone i am working on an assignment on s-block elements where all we have to do is basically make notes from our text book ..... i want to make it a...
Rahul
slamdunkbask...
Offline Send Email
Jan 1, 2004
8:14 am
4873
Hi we did this as part of our AS level chemistry course last year. Group 1 and 2 elements group 1 alkali metals group 2 alkali earth metals ok first ionisation...
paul
paul_sutton5
Offline Send Email
Jan 1, 2004
11:40 am
4874
heyy paul thanks for the info it was kinda elementary though as i was looking for somthing a little more specific and which would be create some interest .......
Rahul
slamdunkbask...
Offline Send Email
Jan 1, 2004
7:34 pm
4875
Rahul, Something unusual. Hmmm.... Look into the melting points of the alkali metals. The heavier ones are stored in sealed glass ampules, due their...
Nathan Haese
nathanhaese
Offline Send Email
Jan 1, 2004
8:24 pm
4876
Hi,Everyone, Happy New Year! Do you study on cyclometallcation of ferrocene derivatives? I would like to dicuss something about that with you. Best wishes, ...
cui xiuling
cuixl1
Offline Send Email
Jan 1, 2004
10:52 pm
4877
Happy New Year, Elise (Although Yours Does Not Come for a Few Weeks Yet!) We discuss everything ferrocene. Let us have your questions....
Steve
steve_geo1
Offline Send Email
Jan 2, 2004
2:25 am
4878
Dear Jon: It goes something like this. In proton spectra (for example) the spin-1/2 nuclei of protons close to the proton under examination shorten the...
Steve
steve_geo1
Offline Send Email
Jan 2, 2004
2:48 am
4879
Hi to all! It is a very interesting debate the one that there is on chromium and its oxides. However there was always something in the transition series that...
Richard Pullicino
angle_fire_o...
Offline Send Email
Jan 2, 2004
9:58 am
4880
heyy nathan thnkss a lot that was very interesting i looked it up and you were right on the money the mp of Cs is 28.5C if you could think of anything similar...
Rahul
slamdunkbask...
Offline Send Email
Jan 2, 2004
11:35 am
4881
Rahul, Here is one last item about alkali metals. They are often handled as liquids in laboratory syntheses. Look up the plumbing used to prepare fresh clean...
Nathan Haese
nathanhaese
Offline Send Email
Jan 2, 2004
3:10 pm
4882
richard. i had earlier posted regarding copper supposedly more stable I oxidation state tho it is not so.the thing is that copper in it's I oxidation state...
vasutewari
Offline Send Email
Jan 2, 2004
8:09 pm
4883
XeF6 has 6bp,1lp. I see many websites or books draw the molecular shape into a octahedral one, if it is so, why does the lp be ignored?? molecular shape: ...
smallsowa
Offline Send Email
Jan 3, 2004
3:20 am
4884
http://www.mytown.ca/ev.php? URL_ID=81306&URL_DO=DO_TOPIC&URL_SECTION=201 Here is a link to our new science column at Science, Art & Culture at MyTown. This...
Norla A.
catdanzing2
Offline Send Email
Jan 3, 2004
9:15 pm
4885
Dear Friends: I shall let this post stand until we can all check it out. Remember that there may be porn, pop-up mania, or credit card traps. If you find any...
Steve
steve_geo1
Offline Send Email
Jan 3, 2004
9:44 pm
4886
... Remember ... what ... It looks like advertising to me, advertising disguised as something else....
pollywog001
Offline
Jan 3, 2004
11:44 pm
4887
Sorry guys. I did not mean that to come out looking like spam. We are creating this new science area entirely pro-bono, there is nothing being bought or sold...
Norla A.
catdanzing2
Offline Send Email
Jan 3, 2004
11:59 pm
4888
Can I react a enamine with a unsymmertical acyl chloride. will the acyl chloride be able to form a enolate its self and hence undergo a self condensation...
jonashley722
Offline
Jan 4, 2004
12:02 am
4889
should not be able too because acid chloride is a very reactive species and nucleophilic substitution would probably occurs. Recall that enamineis usually...
hi hi
hihi007
Offline Send Email
Jan 4, 2004
3:17 am
4890
... Then how would you go about reacting two alderhydes which are different as self condensation will occur and a mixture of resulting products will occur...
jonashley722
Offline
Jan 4, 2004
12:06 pm
4891
The expression for Q (the canonical Partition Function) is Q = q/N where N is the number of particles and q is the canonical partition of one particle. Can...
jonashley722
Offline
Jan 4, 2004
12:41 pm
4892
hey to prevent self aldol condensation in crossed aldol reaction.we have compounds for thermodyanamin or kinetic control which help in directed aldol...
vasutewari
Offline Send Email
Jan 4, 2004
7:31 pm
4893
Xe has 8 s and p electrons available for bonding (which in the ground state form tetrahedral hybrid sp3 orbitals), and so can be octovalent in its highest...
JohnWWW
johnwwxtraconz
Offline Send Email
Jan 4, 2004
10:41 pm
4894
Hi all, I am a new member of this group. I have two questions: What are the sigma and Phi Bonding? Best wishes francisco...
franciscoleonel
Offline Send Email
Jan 5, 2004
5:11 pm
4895
Francisco, Sigma bonds are the chemical bonds between two atoms which allow free rotation about the bond. For example, the bond between the two carbons in...
Nathan Haese
nathanhaese
Offline Send Email
Jan 5, 2004
5:37 pm
4896
How to solve( less-more RAPIDLY) suspension of CaCO3 in alkalic water? Ordinar chelates work too slow. Thx, Puk [Non-text portions of this message have...
puk
pukanec2003
Offline Send Email
Jan 6, 2004
12:41 pm
4897
Hey everyone, I'm a new member of the group, studying in the 11th grade [which as you know is of very high standard in India]. Can someone please explain in...
Tulika
tulika_4_u_02
Offline Send Email
Jan 6, 2004
1:36 pm
4898
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the thechemistrycluster group. File :...
thechemistrycluster@y...
Send Email
Jan 6, 2004
2:04 pm
4899
Can anyone help me with example 8 on the file disconnection I not sure whether I break the bond adjacent to the alderhyde and react formalderhyde with cyclo...
jonashley722
Offline
Jan 6, 2004
2:12 pm
4900
... grade ... Tautomerism is when a proton is moved around a molecule and the structures are linked by equilibrium An example of this is in enols where a...
jonashley722
Offline
Jan 6, 2004
2:21 pm
4901
Ahoy matees! When Rutherford performed his experiment by bombarding Alpha rays on the gold foil , 1. Did he know that Alpha rays were Helium nuclie ,if he did...
Buddy Love
thesweetglad...
Offline Send Email
Jan 6, 2004
2:59 pm
Messages 4872 - 4901 of 13932   Oldest  |  < Older  |  Newer >  |  Newest
Advanced
Add to My Yahoo!      XML What's This?

Copyright © 2009 Yahoo! Inc. All rights reserved.
Privacy Policy - Terms of Service - Guidelines - Help