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Author Topic: CHEM AND BIO HELP AND TIPS HERE  (Read 354763 times)

Offline CatAly$t

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #975 on: May 17, 2010, 10:29:45 am »
what is barium chloride used to test for??
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Offline Lariemeeva

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #976 on: May 17, 2010, 10:32:59 am »
Yes, I saw it and thanks for that but if you saw the link I posted, it's more like the repeated answers for questions which are usually at the end of the experiments.

Eg. What type of reaction is shown?
Give possible errors in this experiment.
Why was the rate of reaction in A more than that in B?
etc.

In other words, the stuff that usually always come including tests for pure water, Alkenes etc.
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6394

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #977 on: May 17, 2010, 10:34:34 am »
Quote from: 6394 on May 17, 2010, 10:25:07 am
u mn the upward delivery thingy
reply fast mayb i cn help
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Offline WARRIOR

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #978 on: May 17, 2010, 10:35:09 am »
Quote from: CatAly$t on May 17, 2010, 10:29:45 am
what is barium chloride used to test for??
+ dilute nitric acid

test for sulfate ions
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Offline Baladya

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #979 on: May 17, 2010, 10:40:12 am »
Quote from: 6394 on May 17, 2010, 10:25:07 am
u mn the upward delivery thingy
reply fast mayb i cn help

yayayayaaya.... was that fast enough xD
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Offline Baladya

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #980 on: May 17, 2010, 10:41:14 am »
Quote from: kim on May 17, 2010, 10:28:48 am
well i dont know a site but ill tell ya wat they are
UPWARD DELIVERY-FOR GASES LESS DENSE THAN AIR'
DOWNWARD DELIVERY-FOR GASES DENSER THAN AIR
GAS SYRINGE-TO FIND VOLUME OF GAS
COLLECTION OVER WATER-FOR GASES THAT ARE NOT SOLUBLE IN WATER

Thx but i wanted to see pics, cuz i wanna see how the water level is...
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Offline mdwael

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #981 on: May 17, 2010, 10:41:29 am »
Hey guys im thinking about Moles/concentration,etc , do we have to learn all the formulas for concentration of water,air,etc if yes then im screwed because I dont know anything about them neither the time to learn them (thank god P3 got 10 days between) and if yes and im screwed can someone tell me what questions are there in any p6? :'(
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Offline Shazizzzle

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #982 on: May 17, 2010, 10:44:52 am »
Quote from: mdwael on May 17, 2010, 10:41:29 am
Hey guys im thinking about Moles/concentration,etc , do we have to learn all the formulas for concentration of water,air,etc if yes then im screwed because I dont know anything about them neither the time to learn them (thank god P3 got 10 days between) and if yes and im screwed can someone tell me what questions are there in any p6? :'(

THERE ARE NO QUESTIONS RELATING TO MOLES IN PAPER 6.
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6394

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #983 on: May 17, 2010, 10:47:22 am »
Quote from: Baladya on May 17, 2010, 10:41:14 am
Thx but i wanted to see pics, cuz i wanna see how the water level is...
its takin a lot of tym 2 post pictures
u cn chk out images on google
:))))))
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Offline Kim

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #984 on: May 17, 2010, 10:47:53 am »
Quote from: Baladya on May 17, 2010, 10:41:14 am
Thx but i wanted to see pics, cuz i wanna see how the water level is...

well i have a wksht wid some pics but they arent that clear
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Offline Baladya

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #985 on: May 17, 2010, 10:50:02 am »
Its okay, thx anyway i just wanted to check, nothing big :P
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Offline mdwael

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #986 on: May 17, 2010, 10:51:45 am »
Quote from: Shazizzzle on May 17, 2010, 10:44:52 am
THERE ARE NO QUESTIONS RELATING TO MOLES IN PAPER 6.

*phew* what a relief, I was sweating buckets! ;D
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Offline Vin

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #987 on: May 17, 2010, 10:52:13 am »
Quote from: Nidzzz on May 17, 2010, 09:48:55 am
hey can any1 help me wid hw 2 demonstrate the solvent extraction of chorophyll 8)

hey sorry my nets working realy bad .. sorry cannot demonstrate right now .. solve oct/nov 20009 paper 6 last question ..
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6394

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #988 on: May 17, 2010, 10:54:22 am »
Quote from: Lariemeeva on May 17, 2010, 10:32:59 am
Yes, I saw it and thanks for that but if you saw the link I posted, it's more like the repeated answers for questions which are usually at the end of the experiments.

Eg. What type of reaction is shown?
Give possible errors in this experiment.
Why was the rate of reaction in A more than that in B?
etc.

In other words, the stuff that usually always come including tests for pure water, Alkenes etc.
k jus a suggestion :
on a new page evry1 jus share questions which repitively cum wid answers
dnt repeat questions
if u agree i will create the topic n lts start
it will b gud revisn <i thnk sooo>
:>>>>
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Offline Baladya

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #989 on: May 17, 2010, 10:54:35 am »
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