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OFFICIAL: GCSE AQA Chemistry - C1- Higher- 19th May 2016 - AM Watch

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    (Original post by lillyroselove)
    what did everyone out for the question about potassium carbonate?X
    I just said that there was no mass deducted and there was no co2 being produced because the limewater didn't turn cloudy
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    The boron atom had 2 in the first shell and 3 in the next, the issue with the shell diagram was it had 8 electrons in its inner shell when it should have had only 2

    Cba to do the rest
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    yup 20.3
    and what did people put for the black stuff? i said carbon monoxide/pariticles????
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    Posted from TSR Mobile

    I said that it did not reach a high enough temperature to thermally decompose therefore no carbon dioxide was being released which is why the limewater did not turn cloudy.
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    (Original post by joeperrin)
    The boron atom had 2 in the first shell and 3 in the next, the issue with the shell diagram was it had 8 electrons in its inner shell when it should have had only 2

    Cba to do the rest
    There was 3 marks for that though
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    (Original post by jackbarry1999)
    I just said that there was no mass deducted and there was no co2 being produced because the limewater didn't turn cloudy
    Yep probably marks for:
    - Saying that there was no mass deducted
    - Because no reaction occurred
    - And no carbon dioxide released to turn the limewater cloudy
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    Just struggled with the last question😐


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    I thought it was an OK test but some of the questions were just... annoying to say the least. Mostly ok, but the big mark questions at the end are a killer. Flunked
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    and for cracking:
    hot catalyst (aluminium oxide)
    and thermal decomposition (high temperature)

    and the tick box one was the copper oxide one because metal oxides are always produced
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    (Original post by zeldor711)
    Yep probably marks for:
    - Saying that there was no mass deducted
    - Because no reaction occurred
    - And no carbon dioxide released to turn the limewater cloudy
    Think I got 2 out of 3!
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    What was the answer to that iron question where you had to complete the sentence?
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    (Original post by thecomputernerd)
    and for cracking:
    hot catalyst (aluminium oxide)
    and thermal decomposition (high temperature)

    and the tick box one was the copper oxide one because metal oxides are always produced
    Didn't it ask for a solid?
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    Last question:
    reaction with hydrogen in a presence of a nickel catalyst at 60 degrees, hardened so it is solid at room temperature and not liquid at room temperature, and hydrogenated oils are useful as spreads in cakes, have high melting points,
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    (Original post by milolj)
    What was the answer to that iron question where you had to complete the sentence?
    Yep, pretty sure I got that wrong xD
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    for the iron one I put 2 literally everywhere, I didn't 4's anywhere
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    mmmmm
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    (Original post by thecomputernerd)
    for the iron one I put 2 literally everywhere, I didn't 4's anywhere
    If in doubt, put 2;

    My motto for chemistry xD
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    I hope you all had a good exam, I am not sure whether mine went well or not, but at least its one exam out of the way! What did everyone put for the question asking how you could improve the experiment with the spirit burner? I said that you could use a copper beaker, as it would allow the heat to transfer faster and more efficiently. The only reason that I put this is because we used a copper cup in calorimetry
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    (Original post by strongcurrent)
    Didn't it ask for a solid?
    the oxide one was solid
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    (Original post by thecomputernerd)
    the oxide one was solid
    omg my brain is gone after that, ignore me please xD
 
 
 
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