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    (Original post by Black Butler)
    SO2 is a yellow gas.
    i hope so. its the same as what i put. for one of the emf questions, did you have to reverse the direction of the reaction when writing out the equation. i can't remember what the question was now.
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    [QUOTE=l4ith;32429588]If I put sulfur reacts with oxygen producing blue light and a colourless gas produced, will that get me the marks?[/QUOTE

    I'd definitely think so! Good luck!
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    did anyone get +38 for the enthalpy one
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    (Original post by l4ith)
    No, it's colourless. Check pg 188 Nelson Thornes.

    ''... it burns with a blue flame to form the colourless gas sulfur dioxide''
    i guess both will be accepted because I remember from AS that sulphur dioxide was a yellow gas.
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    (Original post by Betsss)
    *Sigh*
    If my textbook is correct, then yes
    Mind you.. my textbook has been wrong before
    Woop! How did it go?
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    (Original post by bluepanda123)
    It is colourless. Solid sulphur is yellow
    Check on google. I remember having to learn SO2 being a yellow gas for AS
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    (Original post by bluepanda123)
    It is colourless. Solid sulphur is yellow

    I had a weird brainless moment and said it produces white powder, even though I remember thinking 'which evaporates at room temp because it has a low melting point'
    careless error or what.
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    (Original post by l4ith)
    Woop! How did it go?
    Bleurgh.. could have been better! i wont even ask you.. you'll just depress me
    (i'm guessing you've figured out who i am? )
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    (Original post by Betsss)
    Bleurgh.. could have been better! i wont even ask you.. you'll just depress me
    (i'm guessing you've figured out who i am? )
    Nah some of it was hard, the electrode potential questions were *****es, especially the cell representation, I hate those :-/

    And yup
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    (Original post by lou12)
    i hope so. its the same as what i put. for one of the emf questions, did you have to reverse the direction of the reaction when writing out the equation. i can't remember what the question was now.
    Yes you had to have it going the opposite way round than you expect.
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    (Original post by hahaff)
    did anyone get +38 for the enthalpy one
    yes. either that or -38. really cant remember now
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    (Original post by Black Butler)
    Yes you had to have it going the opposite way round than you expect.
    cool thats what i did. think i remember it now. was it about recharging the cell?
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    (Original post by lou12)
    for one of the emf questions, did anyone reverse the direction of the reaction when writing out an equation. i can't remember what the question was now.
    I think i did, if you are talking about the equation for RECHARGING the lead-acid battery, i figued it would be the reverse of the overall cell reaction ?
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    (Original post by l4ith)
    x
    For the question about why the emf decreases over time - did you talk about the KCl in the salt bridge decreasing over time.?
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    sulphur burns with a blue flame...

    what did people put for the emf graph questions? Could you simply say a non-rechargeable cell? :/

    also, i just did the full Al203 equations instead of the ionic ones (couldnt get the Cl- and H+'s to work in the HCl one lol) reckon thats ok? i mean its the same equation tbh...
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    (Original post by Black Butler)
    Check on google. I remember having to learn SO2 being a yellow gas for AS
    It's colourless. Pure sulphur is a yellow solid which burns with a blue flame

    Good paper imo, really wasn't expecting a bond angles question but it was only 1 mark.
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    u know for the 5 marker at the end i divided by 6 instead of timsing it by 6 hay many marks will i lose all of them
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    Was the enthalpy of solution negative or positive?

    Also was the best reducing agent Zinc?

    Only one colour! annoying!
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    (Original post by lou12)
    cool thats what i did. think i remember it now. was it about recharging the cell?
    yup
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    What did you guys put as the most powerful reducing agent from the table?
 
 
 
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