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AQA GCSE - Unit 3 (P3,B3,C3) New specification papers. Watch

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    Anyone up for revision game?
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    (Original post by NightStrider)
    I feel for you! I haven't finished unit 3 physics or bio in class but I ended up self teaching it.

    The mygcsescience videos are really useful and I made the rest of my notes from the following revision guide :
    http://www.amazon.co.uk/dp/140850834..._df_1408508346

    That revision guide is useful, and it may be at your local library - it was at mine.
    thank you!!
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    (Original post by beaux1)
    thank you!!
    No problem.
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    Has anyone purchased mygcsescience's practice exam papers? Are they good and useful? I'm tempted to buy them, but I don't want to waste my money.
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    I'm thinking of purchasing them as well - no one will have them yet as deliveries start on the 22nd earliest - they should be good but, again i'm unsure, I think i'm going to get them ...
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    (Original post by Captain Anonymous)
    I'm thinking of purchasing them as well - no one will have them yet as deliveries start on the 22nd earliest - they should be good but, again i'm unsure, I think i'm going to get them ...
    I'm unsure too.
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    I'm buying them mate
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    I've decided that I'm going to buy them! Fingers crossed that they're worth it!
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    yeah i hope so
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    going by the quality of his videos they should be :L
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    anyone up for revision game?
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    let's gooooo...........
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    Which of these is correct? If they're all correct, which is preferred?

    Ethanol - C2H6O
    Propanol - C3H8O
    Butanol - C4H10O

    Ethanol - C2H5OH
    Propanol - C3H7OH
    Butanol - C4H9OH
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    (Original post by Kill3er)
    Which of these is correct? If they're all correct, which is preferred?

    Ethanol - C2H6O
    Propanol - C3H8O
    Butanol - C4H10O

    Ethanol - C2H5OH
    Propanol - C3H7OH
    Butanol - C4H9OH
    All correct. What do you mean by preffered?
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    (Original post by NightStrider)
    All correct. What do you mean by preffered?
    Thanks.
    Which is the most popular method of writing those?
    I'm thinking the second way.
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    (Original post by Kill3er)
    Thanks.
    Which is the most popular method of writing those?
    I'm thinking the second way.
    But one is the chemical formula and one is the structural formula. How is there a correct answer.

    Question: What is meant by double circulation and why does the body utilise it?
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    (Original post by NightStrider)
    But one is the chemical formula and one is the structural formula. How is there a correct answer.
    I see, i guess it doesn't matter which one i use. Is it correct saying Butanol will release more energy on combustion compared to ethanol?
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    (Original post by Kill3er)
    I see, i guess it doesn't matter which one i use. Is it correct saying Butanol will release more energy on combustion compared to ethanol?
    Yes
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    double circultaion is basically means the heart pumps blood in 2 diffferent ways and for 2 different areas. From the lungs to the heart and from the heart to the body
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    (Original post by NightStrider)
    Yes
    Thanks for your help. Appreciate it.
 
 
 
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