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Chemistry: Post your doubts here!

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hey..can you post me the sample answer for paper 5 chemistry any year from 2007 onward? i don't want the mark scheme i want the exact answer. i haven't learn it but the exam around the corner. thank you :)
 
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yes it does effect it.
maxboltz2.gif
Thaank youuuu :D
 
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Hi, did anyone do the chemistry practical of may/jun 2012 paper 35? I'v a doubt on the last part in Q3, it says add FA5 to FA4 i got a white precipitate , then it said add HCl and i got a yellow/orange ppt..
the identity from the MS is sulphate ion, can s0me0ne explain?:unsure:
 
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Take it upon yourself like taking chocolates.
"Endo" is a latin word which means to absorb/ to take in/ to accept... you accept chocolates so, its a positive thing. So an endothermic reaction is +ve kJmol-1
"Exo" is yet another latin word which means to release/to give out... so you don't like when chocolates go away from you, so you have a negative feeling. Exothermic reactions are -ve kJmol-1
Hope it helped. :)
i too liked the chocolate, n now it became more easy to understand :D
 
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Hello ! Please help me for June 2012 P13
No. 19, 21, 22, 23, 24, 25, 26, 27,28, 40
Thank you in anticipation
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:)
 
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Take it upon yourself like taking chocolates.
"Endo" is a latin word which means to absorb/ to take in/ to accept... you accept chocolates so, its a positive thing. So an endothermic reaction is +ve kJmol-1
"Exo" is yet another latin word which means to release/to give out... so you don't like when chocolates go away from you, so you have a negative feeling. Exothermic reactions are -ve kJmol-1
Hope it helped. :)
That was cute xx
 
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