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Edexcel IAL Chem unit 2 january 2016 Watch

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    How was it?
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    paper 2 was kinda twisted.Worked hard for infra red greengouse gases and nothing came.Ionic equations were fked upWhat did u write ionic equation of h2so4 to sulphur?and mass of KI was 183ug?right?why calcium oxide react with sulphur dioxide?and iodine was oxidising agent right because it goes from 5 to 0........ What was ionice equation when cl2 react with KI solution?
    Pm me dont answer it here
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    (Original post by Rulezz)
    paper 2 was kinda twisted.Worked hard for infra red greengouse gases and nothing came.Ionic equations were fked upWhat did u write ionic equation of h2so4 to sulphur?and mass of KI was 183ug?right?why calcium oxide react with sulphur dioxide?and iodine was oxidising agent right because it goes from 5 to 0........ What was ionice equation when cl2 react with KI solution?
    Pm me dont answer it here
    Wasn't it IO3- that was the oxidising agent ?
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    yeah it is, It got reduced from +5 to 0. oxidising agent = reduced.
    edit: +5 not 7
    -------------------------

    for Cl2 + KI, its Cl2 + I- -> I2 + 2Cl-

    for the mass of KI, i got moles of I, multipled by 2, then divided Mr of KI. dont think thats correct though.

    overall the paper was very nice, beside 2-3 parts which I did, but I have no idea if they are right, rest is simple. thankfully not a lot of calculations in part B/C, and no drawing experiments. a lot of topics did not show up too, which was kinda weird.



    for drawing ICl3, I put 12 electrons total for I, is that correct? since its in the d-block
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    (Original post by Hammoud779)
    yeah it is, It got reduced from +7 to 0. oxidising agent = reduced.

    -------------------------

    for Cl2 + KI, its Cl2 + I- -> I2 + 2Cl-

    for the mass of KI, i got moles of I, multipled by 2, then divided Mr of KI. dont think thats correct though.

    overall the paper was very nice, beside 2-3 parts which I did, but I have no idea if they are right, rest is simple. thankfully not a lot of calculations in part B/C, and no drawing experiments. a lot of topics did not show up too, which was kinda weird.



    for drawing ICl3, I put 12 electrons total for I, is that correct? since its in the d-block
    My friend I don't think it's +7 to 0, it's +5 to 0 do it now IO3- the oxidation of I is +5
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    (Original post by Polpi)
    My friend I don't think it's +7 to 0, it's +5 to 0 do it now IO3- the oxidation of I is +5
    oops, my bad, meant +5
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    I think everything was alright except few questions from section C were a bit ahh
    But it was much better than June
 
 
 
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