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    Anyone want to do C4 Q and A .... whilst doing bits of C5 as well

    i think i have had a good recap of C4 now... C5 it is...

    but i need to keep refreshing my memory ...thats for the Q and A to boost...


    (Original post by andersson)
    Ryan taught me a good (and kind of silly) way of remembering it: 'Little Red Shoes Or Potato Lillies'

    Little Red = Lithium, red
    Shoes Or = Sodium, orange
    Potato Lillies = Potassium, lilac

    Credit to ryan!
    Hehe...No problem
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    What do you think I'd need in the specimen paper to get 130UMS or a B (if it was a real exam)?
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    (Original post by cameron262)
    What do you think I'd need in the specimen paper to get 130UMS or a B (if it was a real exam)?
    around 40 ... to be very safe
    but i would say borderline C/B will be around 34 tbh

    but thats just my 2cents

    Ryan
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    (Original post by cameron262)
    What do you think I'd need in the specimen paper to get 130UMS or a B (if it was a real exam)?
    I think 40 marks should be a secure B.
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    (Original post by ryanb97)
    around 40 ... to be very safe
    but i would say borderline C/B will be around 34 tbh

    but thats just my 2cents

    Ryan
    How much do you think I will need for 153 UMS?
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    (Original post by Red Fox)
    How much do you think I will need for 153 UMS?
    ermm....around 60 to be safe
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    (Original post by ryanb97)
    ermm....around 60 to be safe
    Really? I thought it would be around 70 and 60 would be a low A*.
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    (Original post by Red Fox)
    Really? I thought it would be around 70 and 60 would be a low A*.
    last year i think it was only 46 (ish...) out of 75 for an A*
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    (Original post by ryanb97)
    around 40 ... to be very safe
    but i would say borderline C/B will be around 34 tbh

    but thats just my 2cents

    Ryan
    Oh really?! I got 68 on the mock with that specification and my teacher said it was only just a B.
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    (Original post by ryanb97)
    last year i think it was only 46 (ish...) out of 75 for an A*
    But those exams were meant to be a lot easier.
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    (Original post by ryanb97)
    Anyone want to do C4 Q and A .... whilst doing bits of C5 as well

    i think i have had a good recap of C4 now... C5 it is...

    but i need to keep refreshing my memory ...thats for the Q and A to boost...




    Hehe...No problem
    What are the qualities of alkali metals?
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    (Original post by andersson)
    What are the qualities of alkali metals?
    qualities meaning properties?

    ermm... soft..low density,,,low M and B points

    Q. as you go dwn group 7 elements what changes in their M and B points?

    Ryan
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    (Original post by ryanb97)
    qualities meaning properties?

    ermm... soft..low density,,,low M and B points

    Q. as you go dwn group 7 elements what changes in their M and B points?

    Ryan
    They increase, which is why chlorine is a gas, bromine is a liquid and iodine is a solid.

    What metal would you use for an aeroplane, and why?
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    (Original post by andersson)
    They increase, which is why chlorine is a gas, bromine is a liquid and iodine is a solid.

    What metal would you use for an aeroplane, and why?
    alminium..its lightweight

    why are metallic bonds strong ?
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    (Original post by ryanb97)
    alminium..its lightweight

    why are metallic bonds strong ?
    + strong and doesn't corrode.

    There is a strong attraction between the delocalised 'sea' of electrons and the positive metal ions.

    What would have a higher melting point, nickel or silver?
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    (Original post by andersson)
    + strong and doesn't corrode.

    There is a strong attraction between the delocalised 'sea' of electrons and the positive metal ions.

    What would have a higher melting point, nickel or silver?
    hngouts....i dont like refreshing
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    (Original post by ryanb97)
    hngouts....i dont like refreshing
    Skype.
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    (Original post by andersson)
    Skype.
    alright
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    (Original post by L'Evil Fish)
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    (Original post by ryanb97)
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    (Original post by andersson)
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    (Original post by BP_Tranquility)
    -
    At the bottom of page 85 in the CGP revision guide it says "Electrolysis of hydrochloric acid or ethanoic acid produces H2 because they both produce H+ ions". I don't really understand this despite it sounding basic. I might have missed something but can someone explain this please.
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    (Original post by Red Fox)
    At the bottom of page 85 in the CGP revision guide it says "Electrolysis of hydrochloric acid or ethanoic acid produces H2 because they both produce H+ ions". I don't really understand this despite it sounding basic. I might have missed something but can someone explain this please.
    The H+ ions move to the cathode (because it is negative so they are attracted to it) and accept electrons from the cathode. Now, two hydrogen atoms will really want one more electron in their outer shell to make it complete, so they will bond covalently (share an electron) and become H2.
 
 
 
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