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AQA AS Chemistry 7404/1 and 7404/2 - 27th May 2016 and 10th June 2016 watch

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    (Original post by Asad_2015)
    How about did u get cl- --> 2e- + cl+
    For the first part I got 2Cl- equals Cl2 + 2e-
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    (Original post by rosemondtan)
    It's ClF3
    4:7
    C2O42-
    Dont cl and f have similar electronegativies so i put Bf3 as most polar
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    (Original post by metrize)
    For the first part I got 2Cl- equals Cl2 + 2e-
    Same

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    (Original post by metrize)
    Dont cl and f have similar electronegativies so i put Bf3 as most polar
    That's what I thought too!

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    I feel as though there wasn't enough time to finish the paper and go through it
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    (Original post by metrize)
    Dont cl and f have similar electronegativies so i put Bf3 as most polar
    BF3 is a non polar molecule because there are no lone pairs on B and the overall dipole moment cancels out due to the trigonal planar shape. On the other hand, ClF3 has 2 lone pairs on the Cl atom resulting in a polar molecules
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    i put cl and f cus electro negativity increases acros a period decreses down the group it was hard paper is it just me or
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    (Original post by rosemondtan)
    BF3 is a non polar molecule because there are no lone pairs on B and the overall dipole moment cancels out due to the trogon all planar shape. On the other hand, ClF3 has 2 lone pairs on the Cl atom resulting in a polar molecules
    Oh yeah i forgot to check the angles damn
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    I accidentally ticked the first 4 Multiple choice then changed them to dots - will I lose mark?
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    What did people get for question 9, percentage mass of magnesium chloride of powder???

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    What did everyone get for the MPC on equilibria,NO2?
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    A

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    (Original post by BenSainsbury)
    I accidentally ticked the first 4 Multiple choice then changed them to dots - will I lose mark?
    Should be alright as long as they see the dots clearly.
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    (Original post by RoughER)
    What did everyone get for the MPC on equilibria,NO2?
    No2 brown endothermic forawrd
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    (Original post by spidle)
    Should be alright as long as they see the dots clearly.
    Cheers man
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    (Original post by moshe015)
    What did people get for question 9, percentage mass of magnesium chloride of powder???

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    Around 35. something%
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    (Original post by RoughER)
    What did everyone get for the MPC on equilibria,NO2?
    Think it was forward reaction exo and NO2 was brown?
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    Ah brilliant, i got 35.4

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    (Original post by moshe015)
    What did people get for question 9, percentage mass of magnesium chloride of powder???

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    29.5% but i don't know if that's right
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    Someone in my class got thag

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