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    (Original post by lilGem)
    Nope

    Apparently this paper is impossible :cry2:
    From people i've spoken to in year 13 they say that it is not that bad, but yeah I think it's MUCH MUCH MUCH harder than F331
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    (Original post by cheetahs56)
    From people i've spoken to in year 13 they say that it is not that bad, but yeah I think it's MUCH MUCH MUCH harder than F331
    The ones I've spoken too have said it's ridiculously difficult

    You can know the content but if you don't knowthe wording wanted it's a lot harder
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    (Original post by lilGem)
    The ones I've spoken too have said it's ridiculously difficult

    You can know the content but if you don't knowthe wording wanted it's a lot harder
    Oh i hate wording Damn you OCR examiners! Lost marks on the first module in silly places, as reading unofficial mark schemes i only got 3 marks wrong, must have lost other ones on wording
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    We haven't gone through the pre-release yet... we haven't even finished polymer revolution. Does anyone else have difficulty completing a WHOLE past paper due to the fact they haven't had the chance to study the pre-release for that specific paper. It's really putting me off revising
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    (Original post by cheetahs56)
    Oh i hate wording Damn you OCR examiners! Lost marks on the first module in silly places, as reading unofficial mark schemes i only got 3 marks wrong, must have lost other ones on wording
    Same! I know the theory relatively well, I just lose the marks on wording
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    (Original post by lilGem)
    Same! I know the theory relatively well, I just lose the marks on wording
    I think this applies to a LOT of people including me.
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    (Original post by krisshP)
    I think this applies to a LOT of people including me.
    I'm convinced they're worse than biology when it comes to it :sad:
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    (Original post by lilGem)
    I'm convinced they're worse than biology when it comes to it :sad:
    With OCR Salters chemistry we not only have to understand the content, but also memorise the mark scheme answers
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    (Original post by krisshP)
    With OCR Salters chemistry we not only have to understand the content, but also memorise the mark scheme answers
    I know- and application of theory to the questions
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    (Original post by lilGem)
    I know- and application of theory to the questions
    The same stuff comes up every year though
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    (Original post by krisshP)
    The same stuff comes up every year though
    True
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    (Original post by lilGem)
    We were given some exam style questions on the advance notice:

    and here are the answers

    Hope this helps anyone


    Qu 2 c's answer is wrong, it is pyramidal not tetrahedral since it has just one lone pair.
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    does ozone have 120degree bonding angle? and im taking it that the shape is pyramidal seeing as though it has a lone pair and not tetrahedral because of only two bonding groups and a lone pair ie 3 sets of electrons?
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    (Original post by StephenNaulls)
    We haven't gone through the pre-release yet... we haven't even finished polymer revolution. Does anyone else have difficulty completing a WHOLE past paper due to the fact they haven't had the chance to study the pre-release for that specific paper. It's really putting me off revising
    I'm having exactly the same problem.. We're so behind in college in both chemistry and biology and we haven't gone through the pre-release which is scaring me! .. With all the homework as well I'm not even having a chance to revise for the re-sit exams at all which is so frustrating!

    I recommend that you start your own revision and study plan and don't rely on college these days!!
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    (Original post by DrewLangan)
    does ozone have 120degree bonding angle? and im taking it that the shape is pyramidal seeing as though it has a lone pair and not tetrahedral because of only two bonding groups and a lone pair ie 3 sets of electrons?
    http://www.elmhurst.edu/~chm/vchembo...s/206ozone.gif
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    I dont understand how it is ozone is bent? if anyone could clarify Thanks
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    (Original post by DrewLangan)
    I dont understand how it is ozone is bent? if anyone could clarify Thanks
    It's due to the lone pair of electrons on the central oxygen


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    (Original post by super121)
    It's due to the lone pair of electrons on the central oxygen


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    I thought you had to have 2 lone pairs on the central atom for it to be bent?
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    (Original post by StephenNaulls)
    I thought you had to have 2 lone pairs on the central atom for it to be bent?
    Not always. Ozone is a triatomic molecule, if it had no line pairs then it would be linear. Due to the lone pair if electrons it is bent, because the electrons repel to get as far away as possible from each other. (This was my teachers explanation anyway)


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    (Original post by super121)
    Not always. Ozone is a triatomic molecule, if it had no line pairs then it would be linear. Due to the lone pair if electrons it is bent, because the electrons repel to get as far away as possible from each other. (This was my teachers explanation anyway)


    Posted from TSR Mobile
    Yes, but I got taught that two lone pairs = bent, 1 lone pair = pyramidal, no lone pairs = tetrahedral... I know that's for 4 areas of electron density, and ozone is triatomic like you say, so surely it wouldn't be bent- it'd be something different that applies to 3 areas of electron density.
 
 
 
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