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    I need to stop reading this threads. My hopes are being destroyed with every post

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    (Original post by Dolphinflips)
    I got linear and 180 too! Not sure if it was 1 or 2 marks tho. Gonna hope its right
    There were 2 lone pairs on the oxygen atom so it's no-linear, bond angle 104.5 degrees. It can't be linear.
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    guys, the oxidation state of oxygen was +2 in the oxygen fluoride, i put -2, funny things is they state in the book that we will not meet this in As level, are they gonna give us the mark or are they gonna just mark the correct one only?
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    (Original post by SazahSauce)
    it was 104.5, non-linear/bent 2 bonded pairs 2 lone pairs
    Well that's it, I've failed :'(
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    (Original post by SazahSauce)
    it was 104.5, non-linear/bent 2 bonded pairs 2 lone pairs
    Do you know for sure if 'bent' will get the mark also?
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    Guys do you think ocr will penalise for writing more than two halide tests.
    I write the bromine + iodine
    And bromine + chlorine
    But I also done aq idione + calcium bromide 😫
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    (Original post by naheed_853)
    guys, the oxidation state of oxygen was +2 in the oxygen fluoride, i put -2, funny things is they state in the book that we will not meet this in As level, are they gonna give us the mark or are they gonna just mark the correct one only?
    part before did say flourine is the most electronegative, so you would expect it be the -ve one of two
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    No, only non-linear or V-Shaped is officially accepted, there may be an "allow" for bent though.
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    (Original post by bigzman123)
    part before did say flourine is the most electronegative, so you would expect it be the -ve one of two
    But I thought the oxidation state of O was always -2 in a compound.

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    Yes, they will, because you didn't read the question, did you, otherwise you would know the answer.
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    Came out of the exam feeling good now I feel awful

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    (Original post by bigzman123)
    part before did say flourine is the most electronegative, so you would expect it be the -ve one of two
    How does electronegativity determine oxidation state? They are 2 unrelated quantities.
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    I've got two questions wrong... God damn.
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    (Original post by UnknownAnon)
    But I thought the oxidation state of O was always -2 in a compound.

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    No when its bonded with Flourine
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    (Original post by UnknownAnon)
    But I thought the oxidation state of O was always -2 in a compound.

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    No, in every molecule except peroxides, superoxides, oxygen and oxygen difluoride.

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    (Original post by seph_muriel)
    There were 2 lone pairs on the oxygen atom so it's no-linear, bond angle 104.5 degrees. It can't be linear.
    Well im pretty sure it was 180 same as CO2
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    (Original post by SamH213)
    Well im pretty sure it was 180 same as CO2


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    No, that's incorrect, because there are two lone pairs.
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    From reading this thread, I think I lost about 8 to 10 marks in total. Hopefully the grade boundaries will be about the same as last year (A=46/60) cuz I really need an A
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    It says in the book that we wont meet the oxidation state of oxygen in oxygen fluorides,
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    (Original post by SamH213)
    Well im pretty sure it was 180 same as CO2
    CO2 doesn't have lone pairs whereas oxygen in F2O does!
 
 
 
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