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    what did you guys get for the total temperature change question about the graph
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    This question has probably been answered a lot, but on the C2 paper, what were the two control variables that you had to tick? Everyone I spoke to said a different answer:confused:
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    (Original post by neil20143)
    WHat did people get for Ethanoic acid having a higher pH than HCL?

    I wrote that HCL is a strong acid so it completely ionises in an aqueous solution but Ethanoic acid is a weak acid that doesn't completely ionise.
    I put that too, also I think that there's a lower concentration of H+ ions
    like HCL dissociates into H+ and Cl- and the carboxylic acid into H+ and COOH
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    (Original post by neil20143)
    I predict 46/60 for an A* in C2, and 44/60 for an A* in C3.
    Ok, what about an A?
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    Unofficial mark scheme anyone?
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    (Original post by mghp)
    Unofficial mark scheme anyone?
    Nope but once again lots of rep for anyone that does!!!
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    (Original post by Palette)


    I wrote something like the maximum energy increase from (making bonds- breaking bonds) has been achieved.
    Yeah that's unlucky, just like I messed up in the chromosome B2 question. Energy levels were from CH3.
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    (Original post by Misora)
    Ok, what about an A?
    It's usually a 9 mark gap between so probably about 37ish
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    What did everyone put for ...
    comparing oxygen isotopes?
    Copper coin question? I put it conduct electricity will I get a mark
    What a metal oxide is? I put alkali
    Lead nitrate solid? I put evaporate and crystallise
    And what other question there were
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    (Original post by ellen199)
    for c3 was the volume of hydrochloric acid 60? it said total so wasn't to sure .. think it may of been 30 but was trying to confuse us haha
    Yeah I realised that too and changed it to 60 but I was unsure so I went back to 30
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    (Original post by vivalastudent)
    This question has probably been answered a lot, but on the C2 paper, what were the two control variables that you had to tick? Everyone I spoke to said a different answer:confused:
    I think I put the concentration of solution and the mass of wood chips
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    (Original post by TheKevinFang)
    Yeah that's unlucky, just like I messed up in the chromosome B2 question. Energy levels were from CH3.
    I shouldn't have lost too many marks on that paper though. I think the six marker was the only question in C2 which I know for certain that I lost marks in.
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    (Original post by Aquafreshh)
    Yeah but what was the context of the question I can't remember this question
    I have the paper here ...
    5 b:
    Metal oxides react with acids to make salts.
    What type of compound is a metal oxide?
    [1 mark]

    if any1 else needs a question ask moi
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    (Original post by tue)
    Yeah I realised that too and changed it to 60 but I was unsure so I went back to 30
    What question is this?
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    (Original post by Turtlebunny)
    Silver nitrate, sodium carbonate and it was an insoluble base
    Would I only lost 3 marks for that?


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    (Original post by Harris07826)
    Yep thats right
    for metal oxide I put ionic yup :/
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    (Original post by Harris07826)
    Yep thats right
    I put 'ionic compound' too.

    It's AQA's fault for being rather vague this year.
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    (Original post by kwstudent)
    I have the paper here ...
    5 b:
    Metal oxides react with acids to make salts.
    What type of compound is a metal oxide?
    [1 mark]

    if any1 else needs a question ask moi
    Can you send pictures???
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    This question has probably been answered a lot, but on the C2 paper, what were the two control variables that you had to tick? Everyone I spoke to said a different answer:confused:
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    (Original post by kwstudent)
    I have the paper here ...
    5 b:
    Metal oxides react with acids to make salts.
    What type of compound is a metal oxide?
    [1 mark]

    if any1 else needs a question ask moi
    how do you have the paper?
 
 
 
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