Qualification > Sciences

CHEMISTRY PAPER 1 HERE

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Triple_A:
Thanks 4 correcting! ;D

GodOfWar:

--- Quote from: Triple_A on June 11, 2009, 07:46:37 pm ---Thanks 4 correcting! ;D

--- End quote ---

ur welcome  :)

simba:
will someone help me in quetion 4 ,15, and 37 in nov.08

VIP_93:
can any 1 plz post chemistry past papers from 93 _ 95 and their mark scheme.

thanx in advance

VIP_93:
4 _ A ,cuz X is ionic so is solube in water and is the filterate while Y is organic so solube in organic solvents and is in the filterate too

15 _ A , cuz when 5g of X REACT WID 1000 cm , 500cm only react while the excess 500 are used to warm the mixture so when 500cm of water only react wid 5g then then all the 500cm react and there is no excess to warm the mixture and raise the temperature so the the decrease will be double

37 _ C cuz an acid will react with the carbonate to give bubbles of CO2
hope this helps
good luck ;) ;)

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