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Author Topic: Polymers and valence electrons NEED HELP PLZ!!!  (Read 1751 times)

Offline Omenbreed898

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Polymers and valence electrons NEED HELP PLZ!!!
« on: May 31, 2009, 01:26:09 pm »
Can you plz tell me the important polymers that we have to know
like starch nylon teryll....etc   !!  with diagrams plz  !!
and can u explain what they want when they tell us to draw when they give us the valances 2+8...
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Offline junky demon

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Re: Polymers and valence electrons NEED HELP PLZ!!!
« Reply #1 on: May 31, 2009, 01:57:29 pm »
guyz helpppp plzzzzzzz evn i gt probz here.. :-\
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Offline guru007

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Re: Polymers and valence electrons NEED HELP PLZ!!!
« Reply #2 on: May 31, 2009, 02:05:41 pm »
Quote from: Omenbreed898 on May 31, 2009, 01:26:09 pm
Can you plz tell me the important polymers that we have to know
like starch nylon teryll....etc   !!  with diagrams plz  !!
and can u explain what they want when they tell us to draw when they give us the valances 2+8...


Like in addition polymerisation, they'll give you monomers and tell u to find polymers so you have to cut out the double bond and if they ask monomer from polymer add the double bond. for condensation polymerisation, starch, glucose.... is to be studied.

Valencies- They give u the electronic structure of the element that helps in drawing BONDING

Plz +rep if it helped !!! ::)
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Offline Priceless

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Re: Polymers and valence electrons NEED HELP PLZ!!!
« Reply #3 on: May 31, 2009, 02:08:18 pm »
thnkz guru007 but guyz if u hv probs in chem plz post in da topic wer it says "Chem ques HERE ONLY", u ll get replys more faster...gud luck evry1!!  ;)
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Don't say "God I have tooo many problems" but say "Problems I have God!"   Gud Luck 2 all 4 xams. Hope v all du well.....fingers crossed LOL

Offline junky demon

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Re: Polymers and valence electrons NEED HELP PLZ!!!
« Reply #4 on: May 31, 2009, 02:08:41 pm »
gt ya bt cud yu gimme an example as well..plzzzzzz
or cud yu solve one of them and scan o anything
dat yu cn do bt an example to make it clear.. :)
Thanks alot

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Offline Omenbreed898

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Re: Polymers and valence electrons NEED HELP PLZ!!!
« Reply #5 on: May 31, 2009, 02:12:06 pm »
Ya if you can show us an example of the valency thingy then that would help
Thanks
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Offline junky demon

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Re: Polymers and valence electrons NEED HELP PLZ!!!
« Reply #6 on: May 31, 2009, 02:14:10 pm »
the problem is wen ure abt to post ur ques..there are olready five posts dat r put up
so if u wnt ur thing don't u gt to repeat urslf agn n agn
n diz iz a clear place for ur ans ..it can b later deleted by the admin..
itz juz today dat wer're doin this,i know itz creating problems bt im gona be selfish :P
cuz i truly truly suck at chemi..!!!
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Offline Omenbreed898

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Re: Polymers and valence electrons NEED HELP PLZ!!!
« Reply #7 on: May 31, 2009, 02:18:18 pm »
sorry bout the title this was my first time but anyways polymers is obviously Chem
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nid404

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Re: Polymers and valence electrons NEED HELP PLZ!!!
« Reply #8 on: May 31, 2009, 02:44:39 pm »
visit http://www.docbrown.info/page01/ElCpdMix/EleCmdMix.htm for bonding

and http://www.docbrown.info/page04/OilProducts/ExtraOrganic.htm for organic chemistry

great notes......docbrown's clinic is awesome
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Offline Priceless

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Re: Polymers and valence electrons NEED HELP PLZ!!!
« Reply #9 on: May 31, 2009, 04:21:56 pm »
Quote from: junky demon on May 31, 2009, 02:14:10 pm
the problem is wen ure abt to post ur ques..there are olready five posts dat r put up
so if u wnt ur thing don't u gt to repeat urslf agn n agn
n diz iz a clear place for ur ans ..it can b later deleted by the admin..
itz juz today dat wer're doin this,i know itz creating problems bt im gona be selfish :P
cuz i truly truly suck at chemi..!!!

hmmm lol i guess ur rite..i hv no probs..just as long as da admins or moderators dnt hv a prob...gud luck im sure u all v du well!!!  ;)

@nid404 thnkz 4 da sites gr8 help... :)
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Don't say "God I have tooo many problems" but say "Problems I have God!"   Gud Luck 2 all 4 xams. Hope v all du well.....fingers crossed LOL

Offline guru007

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Re: Polymers and valence electrons NEED HELP PLZ!!!
« Reply #10 on: June 03, 2009, 05:01:24 am »
Quote from: Omenbreed898 on May 31, 2009, 02:12:06 pm
Ya if you can show us an example of the valency thingy then that would help
Thanks

eg- 2,8,8,2 so 2 is the outer electron and it needs 6 more to become stable

now they'll give you another element 2,6 to make it stable.

The nos. may vary so you can take 3 or 2 structures of an element and this will help to deduce formula !!

Same for covalent bonding

+rep if it helped !!
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Offline bball92

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Re: Polymers and valence electrons NEED HELP PLZ!!!
« Reply #11 on: June 03, 2009, 05:22:26 am »
chem exam is over :P
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