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    (Original post by AsianNoodles)
    Hi, can someone please explain electrolysis in the simplest way they can cause I don't understand it whatsoever? Thanks.
    everything you need : http://www.youtube.com/user/GCSEChem...y=electrolysis



    but levils explanation is esier to understand...and quicker
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    Grrr, now he won't read my reply :mmm:
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    (Original post by L'Evil Fish)
    Grrr, now he won't read my reply :mmm:
    hehe...lets +rep you for the effort.. lol

    ok..im guessing tomorrow will be the day for your 30,000 post

    ryan

    Edit: PRSOM ....grrr
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    (Original post by ryanb97)
    hehe...lets +rep you for the effort.. lol

    ok..im guessing tomorrow will be the day for your 30,000 post

    ryan
    Not that early!:eek:
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    (Original post by L'Evil Fish)
    Not that early!:eek:
    Definitely by friday though !

    Is anyone doing C4/C5 revision ?
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    C4 is a doddle-dot and cross/covalent bonding and percipitation are the main headaches!
    The calculation parts of c5 is easy....some bits are annoying!
    c6 is the hardest GRRR i don't get hydrogen fuel cells or equilibrium!
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    (Original post by ryanb97)
    Definitely by friday though !

    Is anyone doing C4/C5 revision ?
    Well, I think I just have to learn equations and I'm done!


    CCl(2)Fl(2) ---> CClFl(2) + Cl¤
    Cl¤ + O(3) ---> ClO¤ + O(2)
    ClO¤ + O(3) ---> 2O(2) + Cl¤

    I think
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    (Original post by L'Evil Fish)
    Well, I think I just have to learn equations and I'm done!


    CCl(2)Fl(2) ---> CClFl(2) + Cl¤
    Cl¤ + O(3) ---> ClO¤ + O(2)
    ClO¤ + O(3) ---> 2O(2) + Cl¤

    I think
    Gr... im starting C6 today...hopefully finish it by about 1..then smash through load of questions
    When is your C3 exam,,or have you took it,,,,its normally before c4?

    Ryan
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    (Original post by ryanb97)
    Gr... im starting C6 today...hopefully finish it by about 1..then smash through load of questions
    When is your C3 exam,,or have you took it,,,,its normally before c4?

    Ryan
    How can you finish C6 within a few hours?
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    Hey please can someone explain to me how and why temperature and pressure affects equilibrium. :cool:
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    (Original post by IHTWFR)
    How can you finish C6 within a few hours?
    remember...we are revising..not learning
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    (Original post by ryanb97)
    remember...we are revising..not learning
    True but it depends on how you're revising, I guess you're reading it out?
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    (Original post by Turtlefushsia)
    Hey please can someone explain to me how and why temperature and pressure affects equilibrium. :cool:
    when you increase the temprature, equilibrium tries to oppose it, thus favours the side of the reaction which is endothermic, to reduce the amount of heat,to rreduce the temprature

    when you decrease the temprature, equilibrium tries to oppose it, thus favours the side of the reaction which is exothermic,to produce more heat and even it out

    With presure you need to look at the number of moles, of each Gas on both sides of the equation

    If you increase the pressure, you increase the rate of the side of the equation that has more moles of gas .... so equilibrium shifts to the other side,where there are less moles,and also more of that reactant/product


    Since it is a reversible reaction.... it can go both ways - so you want more product and so you change the conditions (temprature,pressure,concentrati on) to make more product!
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    (Original post by IHTWFR)
    True but it depends on how you're revising, I guess you're reading it out?

    Nope, reading, writing then reciting ... in that order..then i have y notes for later as well....athough i tend to make a whle new set of notes every time i revise

    which might just be a good thing

    Ryan
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    (Original post by ryanb97)
    Gr... im starting C6 today...hopefully finish it by about 1..then smash through load of questions
    When is your C3 exam,,or have you took it,,,,its normally before c4?

    Ryan
    Haha, okay!

    Had C3 before half term.. C4 is tomorrow!:eek:
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    (Original post by L'Evil Fish)
    Okay:

    Positive = Anode
    Negative = Electrode

    Electrolysis is breaking down through electricity.

    I'll start with the easiest to understand.

    Molten Lead Bromide = PbBr(2)

    It's an ionic bond made up of ions:
    Pb2+ and Br-

    So these are now molten and flowing freely.

    The Pb2+ is positive and so is attracted to the cathode. It gains 2 electrons there and becomes lead (no charge). Lead is reduced.

    The Br- ions are negative and are attracted to the anode. It gives an electron to the anode and becomes Br (no charge). It is oxidized.

    Yeah?
    (Original post by BP_Tranquility)
    Ah, I see thanks


    Posted from TSR Mobile
    (Original post by ryanb97)
    Gr... im starting C6 today...hopefully finish it by about 1..then smash through load of questions
    When is your C3 exam,,or have you took it,,,,its normally before c4?

    Ryan

    For electrolysis and half-equations will we be given the charges, say Br-, or will we need to know them?
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    (Original post by benwalters1996)
    For electrolysis and half-equations will we be given the charges, say Br-, or will we need to know them?
    You should know them, just look at the periodic table and check which group.
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    (Original post by L'Evil Fish)
    Haha, okay!

    Had C3 before half term.. C4 is tomorrow!:eek:
    Oh thought you had a clash with physics and C4..

    What do you think you have,,, in terms of UMS.... im guessing your confident...At least getting an A:
    How did C3 go then ?

    (Original post by benwalters1996)
    For electrolysis and half-equations will we be given the charges, say Br-, or will we need to know them?
    I think it is very easy to work it out from the peridic table
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    (Original post by ryanb97)
    Oh thought you had a clash with physics and C4..

    What do you think you have,,, in terms of UMS.... im guessing your confident...At least getting an A:
    How did C3 go then ?



    I think it is very easy to work it out from the peridic table
    For C3? Urmmm... At least an A. Hopefully 90+ UMS.
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    Woo Geography over! Time to spend my whole day on Chemistry.
 
 
 
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