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2016 AQA Chemistry C2 - Unofficial Mark Scheme 2016 Watch

  • View Poll Results: How many marks do you think you got out of 60?
    0 - 10 marks
    1.86%
    11 - 20 marks
    2.26%
    21 - 30 marks
    10.23%
    31 - 40 marks
    19.52%
    41 - 50 marks
    36.25%
    51 - 60 marks
    29.88%

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    (Original post by Latina56)
    I'm afraid you are incorrect, magnesium is more reactive than hydrogen so hydrogen forms at the cathode. Most people I know supported this conclusion with the chemistry data sheet; using the reactivity scale. Don't worry about it though it was only 1 mark


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    It was 1 mark for saying hydrogen and another for saying why. So 2 in total
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    (Original post by mmgnaahk123)
    20/21 for a C
    30/31 for a B
    40/41 for an A
    50/51 for an A*
    There's no chance an A will be 40/41, more like 45/46 - your predictions were the actual boundaries for 2015 C2. An A* will be 53. It's all about UMS anyway, not just how well a person did on a particular paper; a couple of raw marks off an A would be like 75-79 (UMS) marks.
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    Are nanoparticles smaller or bigger than atoms???
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    (Original post by Beyonce3716)
    Are nanoparticles smaller or bigger than atoms???
    Bigger, they often consist of a few hundred atoms( as stated in the specification)


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    (Original post by Latina56)
    Bigger, they often consist of a few hundred atoms( as stated in the specification)


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    How many marks was that question

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    (Original post by Harrietbfc)
    It was 200kg right coz it gave the best yield, most profit and least went into rivers and lakes??
    But didn't the line for yield start to level off after 190, I'd, I put 190 but I'm not sure

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    (Original post by dee08)
    How many marks was that question

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    Pretty sure it was only 1 mark ( I may be wrong but I don't understand how you could get 2 from it)


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    (Original post by ivy_entoile)
    I'm pretty sure 180kg will be in the range, I was almost going to write that. I'm guessing the range will be 160-310 or something
    Hope so, I put 190

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    (Original post by Latina56)
    Pretty sure it was only 1 mark ( I may be wrong but I don't understand how you could get 2 from it)


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    Ah, thanks. I hope so. I lost so many marks on the easy one and two markers

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    (Original post by Jamie Vardy)
    There's no chance an A will be 40/41, more like 45/46 - your predictions were the actual boundaries for 2015 C2. An A* will be 53. It's all about UMS anyway, not just how well a person did on a particular paper; a couple of raw marks off an A would be like 75-79 (UMS) marks.
    Do you think if I got an a on this paper but a stars on the others I could still get an a star overall

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    (Original post by dee08)
    But didn't the line for yield start to level off after 190, I'd, I put 190 but I'm not sure

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    Yeah, I put 180 because on every graph that was the reading that was the highest before any graph levelled off. Surely thats right?
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    (Original post by Dr Carlsberg)
    Yeah, I put 180 because on every graph that was the reading that was the highest before any graph levelled off. Surely thats right?
    Yh, I was worried because most people were saying it had to be between 200 and 300
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    (Original post by mhadi288)
    Was the tick box about the neutralisation reaction the first, second, third, fourth or fifth box because i cant remember which one was which. can anybody remember???
    It was first as long as u put oh-+h equals h20 then ur fine
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    Hey ,
    For the question for why did the mixture go cloudy ?
    - I said that an insoluble solid was formed in the reaction which turned it cloudy ( I also named it but I forgot the name of it now ) , this is the right answer for two marks
    BUT
    I also put that a gas is formed which turns it cloudy.
    Does this matter? Or would they ignore the wrong answer and just mark the right answer ?


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    (Original post by loshaw20)
    Hey ,
    For the question for why did the mixture go cloudy ?
    - I said that an insoluble solid was formed in the reaction which turned it cloudy ( I also named it but I forgot the name of it now ) , this is the right answer for two marks
    BUT
    I also put that a gas is formed which turns it cloudy.
    Does this matter? Or would they ignore the wrong answer and just mark the right answer ?


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    I said that sulphur dioxide gas was given off
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    (Original post by Latina56)
    Bigger, they often consist of a few hundred atoms( as stated in the specification)


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    Cheers! Yeah I put that nanoparticles are 1 and 100nm in size and said that so they are bigger than atoms
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    (Original post by Beyonce3716)
    Cheers! Yeah I put that nanoparticles are 1 and 100nm in size and said that so they are bigger than atoms
    Nanoparticles are much smaller than normal atoms!
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    (Original post by Latina56)
    I'm afraid you are incorrect, magnesium is more reactive than hydrogen so hydrogen forms at the cathode. Most people I know supported this conclusion with the chemistry data sheet; using the reactivity scale. Don't worry about it though it was only 1 mark


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    yes i know thats what I've said hydrogen forms at the negative electrode because magnesium is more reactive
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    (Original post by Jack Churcher 12)
    To get a C overall you need 240 UMS POINTS. So across the the 3 papers and Controlled Assessment you need a average of 60 UMS POINTS per unit. Hope this helps you a bit.
    Do you know how many marks that'd be all together? Really confuses me
 
 
 
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