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    For the dative covalent bond, was the dative bond between the N and the B?
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    PH3 I put vaan deer walls?


    My friend said it is symmetrical molecule, so it is van der Waals' forces
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    (Original post by jackitsme)
    ahh i wrote cyclohexene!! LOOL
    same
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    (Original post by LH78)
    For the dative covalent bond, was the dative bond between the N and the B?
    Yeah, the N atom provides both electrons
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    Ok, so I've looked through my calculator and got some of the answers from the number questions...
    3.01 x 10^22 for the molecules question.
    16 for the value of x on the question on the hydrated compound question.
    360 for the question on volume I think.
    0.0015 on the moles question.
    22.5 idk what question, maybe another volume.
    120 degrees for one of the bond angles and 109.5 for the other bond angle.

    Hopefully I got the same answer as some of you guys :/
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    (Original post by theCreator)
    Yes it did.

    Ag+ (aq.) + I- (aq.) ---> AgI (s)
    shouldn't the salt be AgI2 ?
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    (Original post by jackitsme)
    PH3 I put vaan deer walls?


    My friend said it is symmetrical molecule, so it is van der Waals' forces

    Your friend is wrong. I made the same mistake. It's unsymmetrical because of 3 bond pairs and 1 lone pair. Making it permanent dipole-dipole attraction.
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    (Original post by kelvinbeyioku)
    same
    LOOOL SO MANY OF US WROTE CYCLOHEXENE :/ aah only if it were a mark :L
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    (Original post by kelvinbeyioku)
    shouldn't the salt be AgI2 ?
    No because in AgNO3, we know that NO3 is a molecular ion with a 1- charge. Making Ag 1+, therefore only 1 iodide ion is required
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    HOW MUCH WILL the grade boundaries be for B or C??
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    (Original post by theCreator)
    No because in AgNO3, we know that NO3 is a molecular ion with a 1- charge. Making Ag 1+, therefore only 1 iodide ion is required
    ohhh i see
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    (Original post by jackitsme)
    LOOOL SO MANY OF US WROTE CYCLOHEXENE :/ aah only if it were a mark :L
    I nearly put that for the first part cyclohexane's for the displacement reaction I believe?
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    (Original post by jackitsme)
    HOW MUCH WILL the grade boundaries be for B or C??
    prob 45 for a B, then like 38 for a C but that's just a guess
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    (Original post by theCreator)
    Did you times 0.0015 by 3 because of stoichiometry?
    i think so..
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    (Original post by jackitsme)
    LOOOL SO MANY OF US WROTE CYCLOHEXENE :/ aah only if it were a mark :L
    haha i wrote that too, was it aqueous NH3?
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    I personally found it quite hard - harder than January.

    Any ideas on grade boundaries considering January was 49/60 for an A?
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    (Original post by LH78)
    For the dative covalent bond, was the dative bond between the N and the B?
    Yes. That's where I put it anyways
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    (Original post by jackitsme)
    HOW MUCH WILL the grade boundaries be for B or C??
    Last time I'm pretty sure I got 38/60, and that was a D so it's probably going to be around the same.
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    (Original post by anonymousecheese)
    Yeah thats right
    but you had to make sure that none of thr k+ were connected to the other k+
    k+ cl- k+
    cl- k+ cl-
    k+ cl- k+
    but it was 3D.
    would i get a mark for just putting the charges?
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    (Original post by Weasleys_jumper)
    haha i wrote that too, was it aqueous NH3?
    well apparently it is mate :L
 
 
 
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