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  1. W

    did anyone else get 387mg/L for EDTA?

    yep
  2. W

    Comparison of Multiple-Choice Answers

    Here are mine... 1)C 2)A 3)B 4)C 5)D 6)B 7)A 8)B 9)C 10)C 11)C 12)A 13)D 14)D 15)A I think q5 should be b(4)
  3. W

    Hsc 2004 Mc

    I'll take your word for it. Thanks.
  4. W

    Hsc 2004 Mc

    Couldn't the first one be d also. For example, biopol is invaluable in medicine because there is no fossil fuel based alternatives and therefore biopol has superior chemial properties than synthetic polymers. Is biodegradbility a chemical property? For the second, why is it B? The other...
  5. W

    Hsc 2004 Mc

    Does any one know the answer to these qs? am i missing anythng obvious? 2 Why is research into synthetic biopolymers attracting great interest? (A) They decompose more easily than traditional synthetic polymers. (B) They can be produced more cheaply than traditional synthetic polymers. (C)...
  7. W

    Band 6 cut off?

    What do you think the band 6 cut off will be? 85?
  8. W

    How Is Economic Growth Measured?

    thanks
  9. W

    How Is Economic Growth Measured?

    I thought economic growth refers to an increase in the productive capacity. In other words, an shift in the PPC curve. But then how does that work with GDP?
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