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    (Original post by Kira Yagami)
    For the bit at the end, for the propagation reaction I just chose a propagation step from one of the equations. Is that correct?
    Thought it asked for the one forming specifically the CCl4?????


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    (Original post by Kwaks)
    Wish me luck lol.


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    You'll be fine! F331 would make up for it!!

    And you still have f334 and 5 which you can get A*s in which will BOOST YO GRADE
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    For the one about co2 and the ocean I said "The high pressure in the ocean keeps co2 in place" ... this came up once before.

    For the one about magenisum and calcum being removed from sodium chloride or whatever, I said they have a 2+ charge so can bond more strongly/ this could lead to contamination or something or an impure product or something
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    (Original post by SohaXO)
    You'll be fine! F331 would make up for it!!

    And you still have f334 and 5 which you can get A*s in which will BOOST YO GRADE
    Thanks, I pray and hope so


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    (Original post by Kira Yagami)
    For the one about co2 and the ocean I said "The high pressure in the ocean keeps co2 in place" ... this came up once before.

    For the one about magenisum and calcum being removed from sodium chloride or whatever, I said they have a 2+ charge so can bond more strongly/ this could lead to contamination or something or an impure product or something
    I just said also positively charged, therefore attracted to the negative membrane stopping Na+ from binding is that okay???


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    (Original post by Kwaks)
    I just said also positively charged, therefore attracted to the negative membrane stopping Na+ from binding is that okay???


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    I spoke about less shielding and nuclear charge
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    This paper was just as hard as last year right? I would say an A is around 72 - 74.
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    For the frequency it was like 5.14 X 10^14 or something right... something like this?
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    (Original post by SohaXO)
    I spoke about less shielding and nuclear charge
    Edit:
    I spoke about how they can disrupt the reaction and also react
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    (Original post by Kira Yagami)
    For the frequency it was like 5.14 X 10^14 or something right... something like this?

    I just remember getting something to the power of 13
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    CCl3 + Cl2 --> CCl4 + Cl thats what i put
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    Anyone remember what they got for the concentration of H+ ions?
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    For the last question. Something about voc reacting with ozone forming ozonois which breaks down and this leads to a crigee intermediate then the intermediate reacts with so2 and forms aerosols etc... Concentrations of them are low that's why they were discovered late something like that. I gave a bit more detail but just used the advanced notice. This correct?
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    I put the same
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    (Original post by smm90)
    Anyone remember what they got for the concentration of H+ ions?
    0.0375 I think
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    For the mole one it was 1:2 ratio right

    I remember it was 19.7 cm reacted with 0.1 mole and volume of h was 50 cm
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    For the e/z one, it was z but 2 end right and other was e
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    This was harder than last years paper right or about the same?
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    harder paper in my opinion boundaries should be within 70-74 in my opinion
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    I think harder than last years paper
 
 
 
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