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Recent content by matchwhiz

  1. M

    Problems in IELTS Exam

    the problem is with their accent. they pronounced EA as AI,and their is know big difference between their pronunciation of A and H.
  2. M

    pls, can someone tell me why the melting point of graphite is higher than that of diamond?

    graphite has covalent bonding same as diamond,but it also have van der waal forces,which exist between the hexagonal parallel layers,thus more energy is needed in graphite due to the presence of van der waal forces,which are absent in diamond,thus graphite has a higher melting point than diamond.
  3. M

    physics p12 discussion

    hey how do you find the paper, i find it easy,bt very tricky
  4. M

    biology p22 discussion

    lets discuss about bio p22.
  5. M

    Physics 9702/22

    E=75000 to find the charge u nid to equate qE=mg i got an answer in the power of -19 i think.
  6. M

    how was phy P22??

    do anyone remember their last expression on question electricity which worth 2 marks i got E1-E2=i1r1+i1R1+i3r2+i1(R2/2)
  7. M

    Physics 9702/22

    no there are 4 segments the graph becomes constant again at negative 12.5 till 100seconds
  8. M

    chemistry p22

    u should expect this kind of paper since paper 4 lack calculation n 189 is not the answer i hv got 62 i think
  9. M

    chemistry p22

    hey to calculate enthalpy change(E=mcT) what volume did u use as mass 20 or 30 cm3 and what is the second structural formula 4 the first question(C2H4O2 molecular formula)
  10. M

    THIS or THAT

    MOZILLA FIREFOX OR GOOGLE CHROME
  11. M

    physics p4 discussion

    hey what about the paper dont you think that there is too much theory and only a few calculation
  12. M

    Chemistry P42 Discussion

    infact you should carry out diazotisation by using dilute HCL and NaNO2 below 10'c to form the diazonium salt.then warm the salt with dilute acid to phenol
  13. M

    physics p4 discussion

    guess about the paper?
  14. M

    Chemistry P42 Discussion

    i have written carry out the experiment in a fume cupboard. is it a good answer?
  15. M

    Chemistry P42 Discussion

    how did you calculate the order of the third one and u answer?
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