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    For the chemistry AQA Paper 1, do we need to know about Avogadro’s constant?
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    Yeah I do triple higher and we need to know that.so only learn it if your doing triple higher
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    (Original post by Sehar.k101)
    Yeah I do triple higher and we need to know that.so only learn it if your doing triple higher
    How much of it? I just tried to watch a video on it but it really confused me :-/
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    All of it use free science lessons on YouTube
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    (Original post by Sehar.k101)
    All of it use free science lessons on YouTube
    That’s the one I tried to watch... I’m panicking.
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    The exam is in two days don’t worry
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    Or you can watch Tyler DeWitt's videos - more thorough
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    (Original post by Sehar.k101)
    All of it use free science lessons on YouTube
    That’s the one I tried to watch... I’m panicking.
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    https://www.youtube.com/watch?v=dAwROBih5Dw

    Might be helpful
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    (Original post by ohdearstudying)
    https://www.youtube.com/watch?v=dAwROBih5Dw

    Might be helpful
    Thanks very much!
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    Could someone please explain endothermic and exothermic reactions cause I'm a little bit confused
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    avogadros constant is how many atoms there are in a mole of a substance e.g
    (6.02x10^23) <---- avogadros constant , so for 1 mole of a substance there is 6.02x10^23 atoms
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    Do we have to memorise the reactivity series cos i swear we're not getting those sheets this year
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    (Original post by roadrunner98)
    Do we have to memorise the reactivity series cos i swear we're not getting those sheets this year
    Yes we do, sadly.
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    (Original post by ohdearstudying)
    Yes we do, sadly.
    Do you have any tips or any mnemonics to help me remember the series?
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    (Original post by roadrunner98)
    Do you have any tips or any mnemonics to help me remember the series?
    honestly. i haven't learnt it myself. Seneca and Tassomai are my only suggestions. I really am sorry
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    (Original post by ohdearstudying)
    honestly. i haven't learnt it myself. Seneca and Tassomai are my only suggestions. I really am sorry
    It's fine. Thanks for the websites
 
 
 
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