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    Nah i reckon they'll condone the mistake cos i bet a ton of people made it :p:
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    (Original post by Ellie4)
    They probably wouldn't be that pedantic, given that it's bio and not chemistry. I hope not anyway :s: God, I probably got a U on this paper

    i agree Ellie...

    Its a great point bekaboo.. i get a bit nerdy in these situations () but you're right.. mercury chloride aint a metal.. but i still think u could get away with that.
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    They probably wouldn't be that pedantic, given that it's bio and not chemistry. I hope not anyway God, I probably got a U on this paper
    nownownownow lets not start gettin irrational u r NOT going to get a U..i think we will all bet our lives on it..^^
    we all juss have tow ait..everything we can do, is done
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    (Original post by Ellie4)
    God, I probably got a U on this paper

    you will always do better than you thought in exams.. im sure you didnt get a U
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    i dont remembr wot i put, but i doubt theyre gona fuss over it.
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    Why ever not?
    I doubt they'll dock you the mark because so many people will have done it so the mark scheme will be edited
    But technically mercury chloride is WRONG
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    NO its not, its a METAL salt!! the metal being mercury. , im pretty sure i wrote mercury myself! so dont really care.
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    But it's not a metal!!
    The metal is mercury. Mercury chloride is an ionic salt of a metal but it is not in itself a metal. It does not exhibit metallic properties.
    If I asked you for the name of a carboxylic acid you wouldn't name ethanoyl chloride because even though it's ethanoic acid with some chlorine swapped for an OH it is still not a carboxylic acid!!
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    umm, but your forgetting, that in carboxylic acid the OH is wot makes it the acid, which is being removed and swapped with a Cl. BUT in mercury chloride the mercury is still there.. it still acts as an inhibitor, as does copper sulphate, which is also a METAL salt. The mercury stays there!!
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    Ok fine bad example - it was on my chemistry exam on tuesday :p:

    At any rate it is a metal SALT not a metal!!
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    OMG..ure soo persistant.. its a metal salt, and the question said that it was aqueous, and aqueos solution all metal salts are in their seperate ions ie Hg+ and Cl- in this case! ..., people will get the mark for it.
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    ANYWAY! I hope we'll get the mark for it!
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    Some people think they are always right.
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    (Original post by Mullerice)
    Some people think they are always right.
    ...what?
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    I'm guessing it was aimed at me for refusing to admit that a compound containg a non metal atom is a metal.
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    (Original post by Bekaboo)
    I'm guessing it was aimed at me for refusing to admit that a compound containg a non metal atom is a metal.
    Right. Well that's silly! I don't doubt you're right, I just hope I won't get penalised fo rbeing wrong
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    Bacteria r immobilised so that they could be used over and over again
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    I thought it was so the light would come from one place?
    Because surely if they have been denatured by the heavy metal ions... then they won't work anymore?? I could be wrong though - i didn't know i guessed
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    (Original post by Bekaboo)
    I thought it was so the light would come from one place?
    Because surely if they have been denatured by the heavy metal ions... then they won't work anymore?? I could be wrong though - i didn't know i guessed
    There's probably several right answers.
    I said the so they could be reused thing, but I was clutching at straws!
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    (Original post by najah)
    Bacteria r immobilised so that they could be used over and over again

    thats what i put. just like immobilised enzymes in unit 1
 
 
 
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