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  1. D

    Igcse Chemistry paper 12 oct/nov 2012

    The answer should be measuring cylinder as the question ask for quick transfer of liquid. But if they ask u for accuracy then the answer should be burette.
  2. D

    Chemistry paper 1 doubts!!

    Chlorination is used to kill the bacteria not to remove the fertilliser.
  3. D

    Chemistry October/November 2012 Paper 32 how did it went ?

    I lost approx 8 points(most of it Is silly mistakes). Hopefully i can still earn a or even a*.
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    Who is gona apear IGCSE xams in oct/nov 2012?

    Color change it will turn from purple to colorless.
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    CIE 2012 Oct/Nov discussion!!!

    Wow, good luck man. I'll just hve bio p3 tmmrw.:)
  6. D

    CIE 2012 Oct/Nov discussion!!!

    Thanks, do u take bio p3 tmrrw ??
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    CIE 2012 Oct/Nov discussion!!!

    Wish u score A* man.
  8. D

    CIE 2012 Oct/Nov discussion!!!

    U r welcome dude :)
  9. D

    CIE 2012 Oct/Nov discussion!!!

    It's reweighed in order to improve realibilty. Reduce in weigh because some of it evaporate to the air and dissolve in the solution during the process.
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    CIE 2012 Oct/Nov discussion!!!

    But in the qtion we are preparing for gas, so i think zinc is a better choice because as it react with dl HCL it will form hydrogen gas.
  11. D

    CIE 2012 Oct/Nov discussion!!!

    Oh ok. But i guess the question is the same for the Zinc part. Anyway thanks. :)
  12. D

    Haha,thanks.

    Haha,thanks.
  13. D

    CIE 2012 Oct/Nov discussion!!!

    The ans should be zinc, it will react with dil HCL to form hydrogen gas.
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