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Search results

  1. haochen

    subjects to study for chemistry paper 6?

    can u read this http://www.xtremepapers.me/CIE/Cambridg ... _qp_62.pdf
  2. haochen

    Want bio p31 answers ? (ask here)

    :)
  3. haochen

    Chemistry doubts..ask here!

    yeah :)
  4. haochen

    subjects to study for chemistry paper 6?

    and rusting and its factor :D
  5. haochen

    chemistry p6 topics ?

    no offence but rusting come in paper 6 .
  6. haochen

    Want bio p31 answers ? (ask here)

    i dont know the answer so i wrote with my general knowlegde and common scene that A will widen and B will become smaller therefore it give a pressure to push the baby out side to give birth :D
  7. haochen

    Chemistry doubts..ask here!

    thx yeah my easiest subject is chemistry thats why :) and the hardest is biology :( hw bout u ??
  8. haochen

    chem p6

    :D
  9. haochen

    Chemistry Paper 6 Past Papers

    they do repeat question !!!!!! in chemistry a question in 2010 came from 1999 paper exactly the same and in physic paper 1 this year, it came from 1999 paper i solve them thats why i know :D but the main thing is for u to understand what they r asking and answer in a proper way :) hope i...
  10. haochen

    Want bio p31 answers ? (ask here)

    i didnt read the table :( but get over it coz it will do u no good in ur up coming exam but depress u and ull do bad in the other too :)
  11. haochen

    Chemistry doubts..ask here!

    ohhh he post it :D (fast source :) ) i think salt water because the factor of rusting is water and oxygen but there are two other factor which increase the rate of rusting: 1) salt 2) acid so salt water nail rust faster :D hope u got it :D
  12. haochen

    Biology P31 <-----

    i wrote that it help the lymph vessel to move to a specific area and not to let it flow backward.
  13. haochen

    Chemistry doubts..ask here!

    can u post the paper cause i dont understand from it . do i answer one f them or by experiment? ?
  14. haochen

    Chemistry doubts..ask here!

    no problem :D anytime :)
  15. haochen

    Chem P6

    the first is ok but use two flask and two syringe and check the time taken for each to produce a volume of gas (write any). the compare them about the second one combustion is the burning of a substance in the present of oxygen and substances that we use in the reaction may cause this. can u...
  16. haochen

    Chemistry doubts..ask here!

    the first on is correct but about the second one: if u halve the excess and the excess become a limiting reactant it product will be less and the reaction will be slower but if u halve the excess and it is still in excess than ur second one is correct :D
  17. haochen

    Biology P31 <-----

    dunno much but i didnt say mine was correct but either way lets forget about it and study for other upcoming sub :D
  18. haochen

    Want bio p31 answers ? (ask here)

    Mostly it can cause the infected gene may be transmited to the baby and reproduces inside. well i already wrote it :) there is nothing we can do so concentrate on ur paper and score hte best :D
  19. haochen

    Chemistry doubts..ask here!

    change 3 and 4 to : 3-Add a few drops of methyl orange(indicator solution) into the conical flask 4-Carefully add NaOH from the burette into the conical flask until you get a change in color from red to orange. remember everyone especially narutogirl : if u use acid in burette and base in flask...
  20. haochen

    Physics Paper 3 help needed

    all u need to know is the relation of the formula u need to memorise the formula and the relation of them i guarantee that u will get an A because most of it is using the formula
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