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Author Topic: CHEM AND BIO HELP AND TIPS HERE  (Read 344784 times)

6394

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1065 on: May 17, 2010, 02:36:57 pm »
k guyz 1 more ques tests with barium chloride <i dunnoo>
lik example :To the third portion of the blue solution,(which is copper (11))
dilute hydrochloric acid was added
followed by barium chloride
solution.
tel answer
n tel if there r ny othr tests wid barium chloride :)))
Thanks
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6394

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1066 on: May 17, 2010, 02:37:55 pm »
Quote from: 6394 on May 17, 2010, 02:36:57 pm
k guyz 1 more ques tests with barium chloride <i dunnoo>
lik example :To the third portion of the blue solution,(which is copper (11))
dilute hydrochloric acid was added
followed by barium chloride
solution.
tel answer
n tel if there r ny othr tests wid barium chloride :)))
Thanks
it is frm ppr m/j 2009 By the way
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Offline DEGO

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1067 on: May 17, 2010, 02:39:09 pm »
Quote from: 6394 on May 17, 2010, 02:36:57 pm
k guyz 1 more ques tests with barium chloride <i dunnoo>
lik example :To the third portion of the blue solution,(which is copper (11))
dilute hydrochloric acid was added
followed by barium chloride
solution.
tel answer
n tel if there r ny othr tests wid barium chloride :)))
Thanks
barium chloride ests for sulPHAte man the key for SULPHATE IS BARIUM because it react and give barium sulphate which is insoluble whit ppt got it? ???6394
« Last Edit: May 17, 2010, 02:42:49 pm by DEGO »
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Offline Shazizzzle

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1068 on: May 17, 2010, 02:40:10 pm »
Quote from: 6394 on May 17, 2010, 02:37:55 pm
it is frm ppr m/j 2009 By the way

This is to test the presence of sulphate ions.

The answer to this is White Precipitate forms.

As it is Copper (II) Sulphate, it forms Barium Sulphate (an insoluble salt) on reacting with barium chloride, proving presence of Sulphate.
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•$#@2™•

6394

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1069 on: May 17, 2010, 02:44:00 pm »
Quote from: DEGO on May 17, 2010, 02:39:09 pm
barium chloride ests for sulPHAte man the key for SULPHATE IS BARIUM because it react and give barium sulphate which is insoluble whit ppt got it? ???6394
oh yaaaaaaaaaaaaaaaaaaaaaaaa
ooops i totally 4 get dat
Thanks both of u
:P :P
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6394

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1070 on: May 17, 2010, 02:45:21 pm »
rofl =D
now i wont 4 get this bcoz of wat jus hppnd
lol

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Offline DEGO

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1071 on: May 17, 2010, 02:46:38 pm »
ok do i have future in teaching XD lol
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6394

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1072 on: May 17, 2010, 02:49:12 pm »
lol
u r nt bad at it
thou attention :U WILL BE FUNNY TEACHER !!!<funny as in a gud way>
:P
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Offline DEGO

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1073 on: May 17, 2010, 02:50:40 pm »
thx 2rf3lk l  qb3a XD
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6394

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1074 on: May 17, 2010, 02:52:15 pm »
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6394

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1075 on: May 17, 2010, 02:55:34 pm »
@ DEGO
i noe u myt be tyred of this ques bt....... :P
so r u done for phy?????????????? n hw well r u prepard
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Offline DEGO

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1076 on: May 17, 2010, 02:58:25 pm »
physics well ;D actually i am meaning to take it next june  :-\ but i guess people said it's exams are easy this year
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6394

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1077 on: May 17, 2010, 02:59:44 pm »
Quote from: DEGO on May 17, 2010, 02:58:25 pm
physics well ;D actually i am meaning to take it next june  :-\ but i guess people said it's exams are easy this year
so u mn u r nt givin ur igs ryt nw
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Offline DEGO

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1078 on: May 17, 2010, 03:02:01 pm »
Quote from: 6394 on May 17, 2010, 02:59:44 pm
so u mn u r nt givin ur igs ryt nw

XD i dn know wtcha mean !
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Offline CatAly$t

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Re: CHEM AND BIO HELP AND TIPS HERE
« Reply #1079 on: May 17, 2010, 03:03:22 pm »
can somebody give me a list of apparatus that we should know?

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InshaAllah 8 A* in IGCSE....Ameen.....

Ade MeLayU ke Kat $!n!???
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