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    (Original post by nusquam)
    Really? I don't think so, I think it's plausible for there to be no change in yield.
    There were equal mols on each side, it was a trick question.

    - Two reasons why putting the lid on the tank with the chromatography experiment in would help - The solvent and dyes wouldnt leave the paper, eg. evaporate?
    - Solubility of sulphur dioxide in air and why - Would'nt escape the container
    - Three reasons for cracking - To get smaller hydrocarbons for different uses.
    - Which reactions for redox reactions - Idk I think it was 6 and forgot otherone
    - Why burning C6H12S is bad - it reacts with air to make acid rain, killing off wildlife
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    (Original post by MohaimenH)
    160kg
    - Two reasons why putting the lid on the tank with the chromatography experiment in would help - The solvent and dyes wouldnt leave the paper, eg. evaporate?
    - Solubility of sulphur dioxide in air and why - Would'nt escape the container
    - Three reasons for cracking - To get smaller hydrocarbons for different uses.
    - Which reactions for redox reactions - Idk I think it was 6 and forgot otherone
    - Why burning C6H12S is bad - it reacts with air to make acid rain, killing off wildlife How many do you think I got right?
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    What do you think the grade boundary for A* is gonna be?
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    (Original post by PC.police)
    - Two reasons why putting the lid on the tank with the chromatography experiment in would help - The solvent and dyes wouldnt leave the paper, eg. evaporate?
    - Solubility of sulphur dioxide in air and why - Would'nt escape the container
    - Three reasons for cracking - To get smaller hydrocarbons for different uses.
    - Which reactions for redox reactions - Idk I think it was 6 and forgot otherone
    - Why burning C6H12S is bad - it reacts with air to make acid rain, killing off wildlife How many do you think I got right?
    - i think thats one of the answers.
    - thats just one part of the answer
    - IDK too
    - Wrote the same thing.

    ask @iamnayeem he got pretty much everything right.
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    (Original post by Iamnayeem)
    What do you think the grade boundary for A* is gonna be?
    132/180?
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    (Original post by Iamnayeem)
    What do you think the grade boundary for A* is gonna be?
    135-ish most probably?
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    (Original post by Iamnayeem)
    What do you think the grade boundary for A* is gonna be?
    What question did you have a hard time with?
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    (Original post by PC.police)
    - Two reasons why putting the lid on the tank with the chromatography experiment in would help - The solvent and dyes wouldnt leave the paper, eg. evaporate?
    - Solubility of sulphur dioxide in air and why - Would'nt escape the container
    - Three reasons for cracking - To get smaller hydrocarbons for different uses.
    - Which reactions for redox reactions - Idk I think it was 6 and forgot otherone
    - Why burning C6H12S is bad - it reacts with air to make acid rain, killing off wildlife How many do you think I got right?
    For the lid question i gave
    -to prevent overflow of solvet
    -prevent loss of solvent by evaloration

    For solubility question i showed calculation by dividing the mass by volume got 19.2g/dm³(probably wrong)

    For the importance of cracking question the answer is(100% sure on this one,this question appeared before in a past paper)
    -produces smaller molecules
    -smaller chain molecules are more useful as fuel and has greater demand
    -smaller ones burn cleanly as fuel
    -cracking produces ethene
    -any named use of ethene(e.g. alcohol production)

    And for reaction i gave reaction 4 nd 6

    And for the sulfide one i gave sulfurdioxide is produced during combustion.the gas is toxic and causes acid rain.
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    (Original post by Iamnayeem)
    For the lid question i gave
    -to prevent overflow of solvet
    -prevent loss of solvent by evaloration

    For solubility question i showed calculation by dividing the mass by volume got 19.2g/dm³(probably wrong)

    For the importance of cracking question the answer is(100% sure on this one,this question appeared before in a past paper)
    -produces smaller molecules
    -smaller chain molecules are more useful as fuel and has greater demand
    -smaller ones burn cleanly as fuel
    -cracking produces ethene
    -any named use of ethene(e.g. alcohol production)

    And for reaction i gave reaction 4 nd 6

    And for the sulfide one i gave sulfurdioxide is produced during combustion.the gas is toxic and causes acid rain.
    Hmm I got most right I guess. Any hard question you struggled with? I cant think of any rn.
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    was a very tricky test. It didnt cover many topics and brought alot of unfamiliar topics
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    (Original post by nusquam)
    Our school did a mock exam at the beginning of the year, and my predicted grade was an A*. However, given the difficulty of this paper, I'm just aiming for an A/B. As long as I get around 70% I'll be happy.

    What do you reckon you're going to get?
    I am hopping for atleast an A tbh but I was suppose to get an A*
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    Guys can anyone do an unofficial mark scheme?
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    (Original post by Iamnayeem)
    For the lid question i gave
    -to prevent overflow of solvet
    -prevent loss of solvent by evaloration

    For solubility question i showed calculation by dividing the mass by volume got 19.2g/dm³(probably wrong)

    For the importance of cracking question the answer is(100% sure on this one,this question appeared before in a past paper)
    -produces smaller molecules
    -smaller chain molecules are more useful as fuel and has greater demand
    -smaller ones burn cleanly as fuel
    -cracking produces ethene
    -any named use of ethene(e.g. alcohol production)

    And for reaction i gave reaction 4 nd 6

    And for the sulfide one i gave sulfurdioxide is produced during combustion.the gas is toxic and causes acid rain.
    What calculation did you do for the hear energy change? Somethingx4.2.....
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    (Original post by PC.police)
    What calculation did you do for the hear energy change? Somethingx4.2.....
    it came something like 1162 for both of us.
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    (Original post by Igcse1student)
    I wrote it does escape, not sure about the reason though.
    Even i wrote it escpaed but didn't write the reason -_-
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    (Original post by nusquam)
    That was weird as hell! I got that question wrong. Apparently the line they provided you with in the exam was just the activation energy curve - you had to extend the line and then draw a line downwards and add the products there.
    Attachment 534515
    I forgot to draw the product line ..
    Literally so many silly mistakes
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    Any one got unofficial Mark Scheme for 1CR paper ?
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    (Original post by PC.police)
    What calculation did you do for the hear energy change? Somethingx4.2.....
    Are you talking about the REDOX reaction question ? " 4 and 6 " was its answer ??
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    (Original post by Igcse1student)
    What about the one that said sublime and stuff?
    Sublime was S to G
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    (Original post by niv1234)
    What does the paper 1CR mean I do Edexcel iGCSE too but I had paper 1C today
    How was Paper 1C ? btw unofficial mark scheme of Paper 1C is released
 
 
 
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