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AQA CHEM1 Fri 21 May watch

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    (Original post by -UNKNOWN)
    was that only one mark?

    also how did you star the shape of Clf3 .. was it two lone pairs at the top and then 3 bond pairs at the bottom?

    Yep.

    I drew the Trigonal bipyramid for that molecule, and put 2 of them are lone pairs, and then drew 3 bond pairs.

    Is this right? Or is it another shape?
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    (Original post by Unknown-User)
    Yep.

    I drew the Trigonal bipyramid for that molecule, and put 2 of them are lone pairs, and then drew 3 bond pairs.

    Is this right? Or is it another shape?
    You're Correct
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    (Original post by Unknown-User)
    Yep.

    I drew the Trigonal bipyramid for that molecule, and put 2 of them are lone pairs, and then drew 3 bond pairs.

    Is this right? Or is it another shape?
    That's what I did
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    (Original post by Goldfishy)
    You're Correct


    I think we all should stop worrying about this exam and get our heads into the books, ready for Unit 2 :p:
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    (Original post by Unknown-User)


    I think we all should stop worrying about this exam and get our heads into the books, ready for Unit 2 :p:
    I can tell Unit 2 is gonna be nightmare already
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    I put nitrogen reacts with oxygen in the air with a spark and high temeperatures (2500) providing Ea I hope that is enough :P
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    (Original post by CHEM1STRY)
    I put nitrogen reacts with oxygen in the air with a spark and high temeperatures (2500) providing Ea I hope that is enough :P
    I did the same but we might need to put the equation for the second mark alsoo for the intermolecule forcces question are you sure it is dipole-dipole?
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    (Original post by Goldfishy)
    I can tell Unit 2 is gonna be nightmare already
    Think Positive

    You never know, the grade boundaries may be quite low for this paper, and you could come out with a nice high mark

    Just concentrate on your closest exams and worry about CHEM2 in the half term :p:
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    (Original post by Goldfishy)
    You're Correct
    omg, I completely guessed at this shape!
    I drew the Fs quite a bit closer together than that though, do you think I'll still get the mark?
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    (Original post by Unknown-User)
    Hmm, I'm pretty sure there were 5 moles of gas in total.
    Yes there was.

    (Original post by Unknown-User)


    I think we all should stop worrying about this exam and get our heads into the books, ready for Unit 2
    Yeah. I have to wait till my 5th exam is over before I concentrate on those.
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    Oh I hope they accept react with oxygen aswell :P
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    (Original post by becca-x)
    omg, I completely guessed at this shape!
    I drew the Fs quite a bit closer together than that though, do you think I'll still get the mark?
    I drew them a little further away from each other, fingers crossed eh? :grin:
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    (Original post by Sparkly-Star)
    Yes there was.



    Yeah. I have to wait till my 5th exam is over before I concentrate on those.
    Ah I think this week is a killer for all AS students.

    I guess all I can is good luck and work hard.
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    I, along with a lot of others, thought this was pretty hard tbh.
    messed up on a couple - might just be able to get a low A
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    (Original post by Unknown-User)
    Yep.

    I drew the Trigonal bipyramid for that molecule, and put 2 of them are lone pairs, and then drew 3 bond pairs.

    Is this right? Or is it another shape?
    Ah crap, I put trigonal planar, with a lone pair above and lone pair below
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    (Original post by -UNKNOWN)
    I did the same but we might need to put the equation for the second mark alsoo for the intermolecule forcces question are you sure it is dipole-dipole?
    Yay the mark scheme for this http://benbrooks.co.uk/chem/UNIT%203...W-MS-Jan02.pdf

    shows it is OK!! Woohoo!!

    So M1 : Nitrogen reacts with oxygen in the air

    M2: spark/2500degC etc.
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    Glad to note I didn't lose THAT many marks. Still I think I am cursed with a B. There were some nasty questions in that paper.
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    hmmn i hope i haven't messed up too much - after reading this thankfully seems lots of people agreed with me in some answers didnt get the cyclopentane or whatever it was one though but i definitely agree the paper was trying to catch us out at every opportunity! anyone thought it started off hard and got easier?
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    what did you guys get for the mole of MgO?
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    (Original post by CHEM1STRY)
    Yay the mark scheme for this http://benbrooks.co.uk/chem/UNIT%203...W-MS-Jan02.pdf

    shows it is OK!! Woohoo!!

    So M1 : Nitrogen reacts with oxygen in the air

    M2: spark/2500degC etc.
    Laith, if I put N_2 + O_2 ---> 2NO would I get M1?
 
 
 
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