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    (Original post by jadys10)
    Thanks to droplet739, I finally got it. :woo:
    Probably one of the hardest Rg I've ever done.

    Tip for gold:
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    check units, for the question and in answer box. Method is quite simple, just two steps
    I've got how to make the 'code' but can you explain the r and s? Thanks
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    (Original post by DanScutt)
    I've got how to make the 'code' but can you explain the r and s? Thanks
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    The compounds shown all have chirality, but they're either R or S. You need to figure that out yourself.
    This may help:
    http://chemwiki.ucdavis.edu/Organic_...Sequence_Rules
    Depending on whether it is R or S, the code pattern will vary between the two constituents that make up the code (. &- will be opposites)
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    Ok, loads of people have been pming me so I'll give you guys another hint here for Rg (because I'm trying to revise for my physics empa...)

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    yes, if you haven't figured it out from the obvious "SOS" clue, you need morse code for this, so go on, whip it up on wiki, you need to keep referring to it.
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    have you noticed a pattern to link the compounds to morse code yet?
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    no you don't need to find the names of the compounds or research their history or link scientists etc.
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    does the bonds seem a little funny to you? It's so detailed it even shows you the "3D" structure!
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    can you relate these "bonds" to dots and dashes?
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    go across the rows of compounds, one compound gives you one letter
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    it's supposed to come out as a name, two words
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    the compounds all have chirality
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    you need to figure out whether the compounds are R or S and then rearrange your sequences
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    still haven't got it???
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    last hint!
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    the first compound is a R molecule
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    The first compound gives you "...-"
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    Can someone please help me on silver, I'm stuck!
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    cu please, name of lamp, means inventor of lamps?
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    (Original post by cs200)
    cu please, name of lamp, means inventor of lamps?
    Probably, though I can't get it either
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    (Original post by palp)
    Use more sig fig

    3s.f.
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    1:1 reaction
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    for cu i've typed so many different inventors of lamps in and none of them seem to work! anyone have any other ideas?
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    I know who it is but can't get the format / spelling right for the cu question

    Posted from TSR Mobile
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    (Original post by bekimills)
    for cu i've typed so many different inventors of lamps in and none of them seem to work! anyone have any other ideas?
    (Original post by mathscot)
    I know who it is but can't get the format / spelling right for the cu question

    Posted from TSR Mobile
    OK, I got stuck on this one for ages
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    The arrangement of the elements around the lamp is a much bigger clue than the lamp itself.
    WARNING, this next one's a pretty big clue.
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    Who first grouped elements like this?

    also one more thing
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    The answer has nothing to do with Humphry Davy
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    Just look up the name on Google and copy and paste the surname that is shown
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    Hey can I get some help for Gold I need to know what to use for the density of 2mol naoh
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    (Original post by jonzza_81)
    OK, I got stuck on this one for ages
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    The arrangement of the elements around the lamp is a much bigger clue than the lamp itself.
    WARNING, this next one's a pretty big clue.
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    Who first grouped elements like this?

    also one more thing
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    The answer has nothing to do with Humphry Davy
    THANK YOU! finally got it
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    Stuck on Rg!
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    Or not, finally got it!

    PM for hints, apologies for any slow replies
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    help on cu pls!
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    (Original post by BigBang2)
    help on cu pls!
    need help too plz
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    Can someone please help me on Cu
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    (Original post by A84)
    need help too plz
    Its annoying i think i tried all possible solns apart from the answer:mad:
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    (Original post by BigBang2)
    Its annoying i think i tried all possible solns apart from the answer:mad:
    true. Its just so hard.
 
 
 
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