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    (Original post by rebbarn29)
    When was most of B7 in that B7 exam?!
    I know, it felt like the exam barely tested us on anything. Oh well, at least it wasn't difficult.

    Anyone have any idea on what the grade boundaries will be like?
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    (Original post by bonnie_x)
    I know, it felt like the exam barely tested us on anything. Oh well, at least it wasn't difficult.

    Anyone have any idea on what the grade boundaries will be like?
    Probably the same as last year's or a mark or two higher.


    ⚔🛡⚔~Nothing happens to anyone that he is not fitted by nature to bear - Maximus Decimus Meridius~⚔🛡⚔
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    So biology over! Onto C7!Thought biology was good, although for waste i put fruit and flowers ahaha because i was stupid, dammit
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    (Original post by realsmilee)
    So biology over! Onto C7!Thought biology was good, although for waste i put fruit and flowers ahaha because i was stupid, dammit
    I'm pretty sure that's correct! I think you could have put oxygen from photosynthesis, carbon dioxide from respiration, faeces, fallen leaves, petals etc
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    (Original post by pinksplodge)
    I'm pretty sure that's correct! I think you could have put oxygen from photosynthesis, carbon dioxide from respiration, faeces, fallen leaves, petals etc
    Really?
    Oh, that's good news

    How are you feeling about C7?
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    (Original post by bonnie_x)
    thank you so much!!
    thankyou.
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    (Original post by realsmilee)
    Really?
    Oh, that's good news

    How are you feeling about C7?
    idk I prefer chemistry in general to physics and bio so hoping it goes well...still not too sure about some parts though how did you find the c4-6 paper?
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    Does anyone have the 2015 c7 paper??
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    Anyone have any good youtube videos for c7?
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    (Original post by reu_taylor)
    Anyone have any good youtube videos for c7?
    These videos are good.

    https://www.youtube.com/playlist?lis...O-EVa3wazbS_9j
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    (Original post by Speedbird129)
    These videos are good.

    https://www.youtube.com/playlist?lis...O-EVa3wazbS_9j
    Thanks, good luck in the exam tomorrow!
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    (Original post by reu_taylor)
    Thanks, good luck in the exam tomorrow!
    Same to you!
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    Someone give me motivation to revise C7 as its the last thing I wanna do
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    (Original post by NiamhM1801)
    Someone give me motivation to revise C7 as its the last thing I wanna do
    Revise or you'll fail
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    (Original post by NiamhM1801)
    Someone give me motivation to revise C7 as its the last thing I wanna do
    Please revise, as after tomorrow you will not have an opportunity to do anything more so prepare fully and the results will be worth it!
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    (Original post by reu_taylor)
    Revise or you'll fail
    Fair point

    (Original post by Speedbird129)
    Please revise, as after tomorrow you will not have an opportunity to do anything more so prepare fully and the results will be worth it!
    This actually helped funnily enough, thanks
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    (Original post by NiamhM1801)
    Fair point



    This actually helped funnily enough, thanks
    You are welcome.
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    Can anyone explain the Haber Process? and Le Chatelier's Principle? :confused:
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    (Original post by NiamhM1801)
    Someone give me motivation to revise C7 as its the last thing I wanna do
    Just think that you will never have to do chemistry again after tomorrow!!
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    (Original post by realsmilee)
    Can anyone explain the Haber Process? and Le Chatelier's Principle? :confused:
    Haber process:
    Ammonia (2NH₃) is made by reacting nitrogen (N₂) and hydrogen (3H₂) together at a pressure of 200 atmospheres, a temperature of 450°C and using an iron catalyst. The process by which this is done industrially is called the Haber process. The reaction is reversible, meaning that not all of the nitrogen and hydrogen will be converted into ammonia as some ammonia will also break down. However none of the reactants are wasted, as those that are not used are recycled and passed through again.

    Le Chatelier's principle:
    Le Chatelier's principle states that in dynamic equilibrium, the position of equilibrium shifts to try to cancel out any changes you make. For example: A + B ⇌ C + D. Increasing the concentration of A means more C and D are produced to counteract the change. If the reaction is exothermic in the forward direction and endothermic in the backwards direction, heating the mixture means the equilibrium moves to the left to counteract the change. If A + B ⇌ C, compressing (increasing the pressure of) the mixture means the equilibrium moves to the right to counteract the change. If there are more molecules in one side of the equilibrium than the other, the equilibrium will shift to the side with fewer molecules to counteract the imbalance.
 
 
 
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