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    (Original post by x_rizma_x)
    yh I got that and I practised that a lot in class so Im 100% sure its right
    I got that too, but it was the wrong mass we put in. It was meant to be the waters mass which was 50g
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    (Original post by Fractite)
    Well, it's a 6 mark quesiton, so you aren't really marked so much on what's correct and isn't but your writing technique for the method.
    If everything else is correct, you'll probably only drop one mark as that's only really a minor mistake.
    Ah okay thanks
    I just really want an A* in chem so I'm hoping stuff like that doesn't have too big of an impact
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    (Original post by Emilybirch)
    I got the same, the next question said it was endothermic
    It definitely said the reaction was exothermic
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    (Original post by sarah400001)
    Arghhh I put the methane one as cows cause I couldn't think of anything 🙈🙈🙈🙈🙈
    Was that wrong then??
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    Did anyone get the one where you had to balance the equation?
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    (Original post by FutureDietitian)
    Did anyone get the one where you had to balance the equation?
    There was a 2 and another 2 somewhere else
    I only realised that was a question in the last 5 minutes - before that I didn't see it lol 😂😭
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    (Original post by Fr3dg)
    Here is the bond energy once and for all:

    ethanol + oxygen-->carbon dioxide + water
    CH3CH2OH + 3O2 --> 2CO2 + 3H2O

    on the left there are:
    5*H-C bonds (each with an energy of 413) which totals 2065
    1*C-C bonds at 347
    1*C-O bonds at 358
    1*O-H bonds at 467
    3*O=O bonds (each with an energy of 495) which totals 1485
    the total left hand side energy is the sum of these at 4722

    on the right side there are:
    4*C=O bonds (each with an energy of 799 [for CO2]) which totals 3196
    6*O-H bonds (each with an energy of 467) which totals 2802
    the total right hand side energy is the sum of these at 5998

    4722-5998=-1276
    it is left as a negative but a positive answer is fine at GCSE
    I sat the same paper but got a different question. One of the bonds formed was a triple bond between a carbon atom and an oxygen atom. And I got 212J for that question.
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    (Original post by FutureDietitian)
    Did anyone get the one where you had to balance the equation?
    It was:

    CH4 + 2O2 gives C02 + 2H2O
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    what did everyone write for the titration question
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    (Original post by there'snoneed)
    It was:

    CH4 + 2O2 gives C02 + 2H2O
    Ah thanks. Was it 1 or 2 marks?
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    (Original post by FutureDietitian)
    Ah thanks. Was it 1 or 2 marks?
    1 mark I think
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    (Original post by milolj)
    Will you lose a mark for saying 1623 rather than -1623?
    No AQA are nice like that...
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    (Original post by Sadxa)
    Can you remember the question about methane? didn't it already say that its from natural gas and where did that come from? if you remember the question tell me pls
    I'm pretty sure it said something along the lines of: Hydrogen comes from methane, what source can you get methane from?
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    (Original post by Wisbey)
    Yeah, I also had that. Did your paper have a specific heat capacity question? I'm seeing calculations for it however on my paper I don't remember a question asking for specific calculations however to compare the fuel of Methane and Decadane or something (I think).
    Yeah I had that question as well. How did you do the calculations? I did how much energy was released by 1 g of fuel then compared it.
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    (Original post by surina16)
    Ah okay thanks
    I just really want an A* in chem so I'm hoping stuff like that doesn't have too big of an impact
    Don't we all..
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    (Original post by thatnerdygirl001)
    did anyone else get -342 for the bond energies ...?:/
    meeeeeeeeee
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    (Original post by lilacpotato)
    Filling in table about non metal ion testing: white precipitate in first box, the rest were no change I think
    (2 marks)

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    What did you get for the bond entalphy question i got 2 thousand something. Also for the catalyst of carboxylic i forgot
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    Was I correct in saying that the pleasant smell produced was esters? (First question)
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    (Original post by nisha.sri)
    What did you get for the bond entalphy question i got 2 thousand something. Also for the catalyst of carboxylic i forgot
    (Original post by ruadb0y)
    Was I correct in saying that the pleasant smell produced was esters? (First question)
    I wrote hot cataylst and esters
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    (Original post by surina16)
    Ah okay thanks
    I just really want an A* in chem so I'm hoping stuff like that doesn't have too big of an impact
    How did you find C2 and C3 ?
 
 
 
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