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  1. R

    Biology 9700 - Paper 21

    at last some one who understands
  2. R

    AS bio 21 discussion anyone?

    the hydrogen bonds are between H-O and N-H there are 2 between AandT and 3 between GandC. and the rest of your answers seem correct.
  3. R

    Biology 9700 - Paper 21

    it was the easiest paper ever, if people think more .
  4. R

    chemistry paper 32..... guess??

    please if anyone has any info post it...thnx
  5. R

    Chemistry P4| A2 only

    i sometimes feel like some questions in the inorganic part of section A are out of syllabus ? is this true or not
  6. R

    A2 chemistry p4 help

    i have my paper 4 exam in a week but i just cant seem to solve the inorganic part of the exam and i have studied .its seems like the questions are from a whole other syllabus , so any tips or thoughts anything that might help plz!!
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