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Edexcel A2 Chemistry Exams -6CH04 (14th June) and 6CH05 (22nd June) Discussion Thread Watch

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    (Original post by samb1234)
    That's why you cant have an ionic structure, it doesn't 'help' as such
    Does the relulsion in this case increase covalent character?

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    Does anyone have summarised notes on all the organic reactions? Or know a good website

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    (Original post by _H_V)
    Does anyone have summarised notes on all the organic reactions? Or know a good website

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    https://chemrevise.files.wordpress.c...tic-routes.pdf
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    (Original post by luisgr8)
    Hello! One quick question. Are we supposed to know how to name complex ions? (cupprate...) Thanks

    Someone please?
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    Lads!!
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    I got this 1 sec peeps


    (Original post by luisgr8)
    Someone please?
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    1. name the number of each type of ligand
    2. name of ligand
    3. Name of transitional metal ion(ending in ate if it is negative)
    4) charge on transition metal ion

    [Cu (H20)6]2+

    is hexa...aqua....coopper(||)

    sabahshahed294 luisgr8
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    (Original post by Cpj16)
    1. name the number of each type of ligand
    2. name of ligand
    3. Name of transitional metal ion(ending in ate if it is negative)
    4) charge on transition metal ion

    [Cu (H20)6]2+

    is hexa...aqua....coopper(||)

    sabahshahed294 luisgr8
    Yeah. Correct.
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    Thanks
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    (Original post by _H_V)
    Thanks
    Welcome
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    (Original post by Cpj16)
    1. name the number of each type of ligand
    2. name of ligand
    3. Name of transitional metal ion(ending in ate if it is negative)
    4) charge on transition metal ion

    [Cu (H20)6]2+

    is hexa...aqua....coopper(||)

    sabahshahed294 luisgr8

    Thanks!!!!
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    (Original post by samb1234)
    Firstly the question is actually about TiCl4 not TiCl3. Now if we look at the structure for each of them in turn:

    1. TiO2 is going to be linear, so there will be a central titanium ion with a +4 charge and an oxygen on either side of it with a -2 charge. Since it's linear, if you looked at another TiO2 the negatively charged oxygens will be electrostatically attracted to the positively charged Ti on another 'unit' and vice versa, meaning you will get an ionic lattice.

    2. TiCl4 will be tetrahedral, so we will have a central Ti 4+ with 4 cl- around it. In this situation, it is not really possible for us to get any real amount of electrostatic attraction. if we put 2 TiCl4 near each other, then the Cl - would be attracted to the positive titanium, HOWEVER the positive titanium is itself surrounded by 4 negatively charged chlorines which essentially get in the way (as they repel the negatively charged cl) and prevent any ionic bonds, so instead you just have a molecular structure
    Ahh, thank you so much!!
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    (Original post by Ayman!)
    Remember the difference between diamond and graphite? It's something like that. The mark scheme was surprisingly lenient with this one. I think I got this section C in my first mock back in December and I just left the entire 4 marks empty lol.

    Haha I was only (half) joking, but thank you :hugs: I'm just worried that if I get a C on this paper I'll get a B overall and I can't let that happen. Organic chemistry and transition metals aren't topics that come naturally to me since I'm not naturally a chemist/biologist No doubt that I'm actually enjoying things though!

    Sent from my SM-G920I using Tapatalk
    Lol, I just left it empty as well!!

    No problem And SAME, I DON'T like transition metals at all, such a dull topic and I used to like organic chemistry but now after unit 5, I am hating it!!
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    IAL Unit 5 papers are depressing. :sigh::sad: I did two of them and I feel like I know nothing! :'(
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    Could someone tell me what this question is asking? I dont quite understand what its asking for?
    Thanks
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    Could someone also explain why the ethandioate must be removed in this reaction?
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    Anyone done IAL January 2016? I liked the paper although the boundaries are super low...
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    (Original post by Ayman!)
    Anyone done IAL January 2016? I liked the paper although the boundaries are super low...
    Ill try and have a look in the next few days, doing jan 2015 ial atm
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    Name:  ImageUploadedByStudent Room1466262177.764748.jpg
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    Do these questions come up at all in unit 5


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    (Original post by Ayman!)
    Anyone done IAL January 2016? I liked the paper although the boundaries are super low...
    will do it in 1 hour
 
 
 
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