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    (Original post by MikaHina)
    For the fellow edexcel chemistry troopers, what do we think is coming up to torture us with ? I'm absolutely petrified of the exam, considering I have been constantly failing this year -do we keep our heads high and hope the paper is doable? or shall I cry now and not in the exam (as I already did that in maths). The multiple choice is devils spawn and don't get me started on Hess's law, as that is clear nonsense in my brain that cannot fathom the arrows and products at all.

    Oh well.

    Good luck nonetheless !
    I'm petrified too! I have no clue what will come up but I hope its bonding and ionisation energies! they're all i seem to understand
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    (Original post by MikaHina)
    For the fellow edexcel chemistry troopers, what do we think is coming up to torture us with ? I'm absolutely petrified of the exam, considering I have been constantly failing this year -do we keep our heads high and hope the paper is doable? or shall I cry now and not in the exam (as I already did that in maths). The multiple choice is devils spawn and don't get me started on Hess's law, as that is clear nonsense in my brain that cannot fathom the arrows and products at all.

    Oh well.

    Good luck nonetheless !
    Do not worry, you should just be incredibly positive bc entering with a negative mindset of how possibly hard the paper could be isn't going to help you at all. You'll be okay- hopefully it won't be too hard and GOOD LUCK TO YOU TOO!

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    how do you draw a functional group isomer of an ALKENE anyone
    i draw a cycloalkane for alkanes but idk how to do an alkene
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    Thank you! Lol you're too good
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    Draw the shape of the NH2– ion, including any lone pairs of electrons.Name the shape made by the three atoms in the NH2– ion.





    Please could someone show me a diagram of how to draw the above and explanation for the name of the shape.


    - Thanks
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    (Original post by Signorina)
    Thank you! Lol you're too good
    No problem


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    thanks
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    (Original post by Tha Realest)
    Draw the shape of the NH2– ion, including any lone pairs of electrons.Name the shape made by the three atoms in the NH2– ion.





    Please could someone show me a diagram of how to draw the above and explanation for the name of the shape.


    - Thanks
    I dont know if its right but..


    Linear-180? Colbalt should be able to clarify if I've got it wrong/not.

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    another question
    proton-1.6725 x 10-24g
    neutrons-1.6748 x 10-24g
    electron-0.0009 x 10-24g
    calculate the mass of this hydrogen atom and can someone explain how they got to there answer....PLEASE
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    Can someone tell me how to phrase the nuclear attraction mark when talking about IE energies of elements that will actually get the mark?

    OCR Chemistry btw

    Thanks
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    (Original post by Anon_98)
    I dont know if its right but..


    Linear-180? Colbalt should be able to clarify if I've got it wrong/not.

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    (Bent) shape showing 2 lone pairs + 2NH bond pairs; 1Bent / v shape/ triangular;

    ^ above is what mark scheme had
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    (Original post by Tha Realest)
    (Bent) shape showing 2 lone pairs + 2NH bond pairs; 1Bent / v shape/ triangular;

    ^ above is what mark scheme had
    Oh gosh, of course. I'm such an idiot lol.

    Thank you.

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    Anyone link the Official AS AQA Chem Unit 1 Thread for tomorrows exam?
    Cheers
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    (Original post by Anon_98)
    I dont know if its right but..


    Linear-180? Colbalt should be able to clarify if I've got it wrong/not.

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    I was taking shower but yeah two lone pairs so similar to water
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    someone help on (e)(iv) how do you work it out!!!!
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    (Original post by justfly)
    someone help on (e)(iv) how do you work it out!!!!
    Sodium because alkali metals always have lowest first IE in their period because biggest radius in the period, smallest nuclear charge and shielding is the same across the period
    Of the same group as you go down the group first ie decreases because bigger radius and more shielding
    So yeah sodium
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    (Original post by Anon_98)
    Oh gosh, of course. I'm such an idiot lol.

    Thank you.

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    Haha no you're not an idiot.

    Please could you draw it on paper + explain ms answer.
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    (Original post by justfly)
    someone help on (e)(iv) how do you work it out!!!!
    It would be aluminium, because as you go across a period, the atomic radius decreases, so 1st IE is higher. This means that the group 1 elements always have the smallest IE in their respective periods, so therefore the lowest 3rd IE would be the latest element with 3 electrons in its outer shell, which is aluminium.
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    (Original post by C0balt)
    Sodium because alkali metals always have lowest first IE in their period because biggest radius in the period, smallest nuclear charge and shielding is the same across the period
    Of the same group as you go down the group first ie decreases because bigger radius and more shielding
    So yeah sodium
    its Aluminium mate.
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    If I am struggling to realise that an molecular shape has lone pairs.. If I draw a dot and cross diagram that could help me work out if there is some right?
 
 
 
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