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  1. ahmed abdulla

    Chemistry: Post your doubts here!

    Can someone have a look at my doubts ??
  2. ahmed abdulla

    Chemistry: Post your doubts here!

    Seems you didnt get it ! take Exp 1&2 ... divide the two concentraions eg exp2 by exp1 .. you get 2.11 .. divide rates.of . exp2 by exp1 > you get 1.45 conc. is not in proportion with rate , and rate DECREASES so its zero order thats what i remember my teacher told me!
  3. ahmed abdulla

    Chemistry: Post your doubts here!

    When ratio of Conc : rate are Equal eg 1:1 l 2:2 >> its first order with the taken reagent When ratio of Conc : rate are 2:1 ie ( conc has higher ratio > its Zero order with the taken reagent When ratio of Conc : rate are 1:2 ie ( conc has lowerratio > its Second order
  4. ahmed abdulla

    Chemistry: Post your doubts here!

    Quoted from examiner report : " The data needed a careful analysis, since the orders were not obvious at first glance. Taking the first and last rows in the table, and comparing the rates to the concentrations of the complex, it could be seen that as [complex] doubles, so does the rate...
  5. ahmed abdulla

    Chemistry: Post your doubts here!

    Went through my chem paper 4 and had this doubts .. Any help ? 3 e (iv ) 5 b (iv ) 7 c (iv ) http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Chemistry (9701)/9701_w11_qp_43.pdf
  6. ahmed abdulla

    Read what ?

    Read what ?
  7. ahmed abdulla

    SOLVED HARDEST questions for QUICK last day REVISION

    I am an A level student , and picked some questions which i solved last year in AS to help so dont ask how i got the answer because i forgot some of them :p
  8. ahmed abdulla

    SOLVED HARDEST questions for QUICK last day REVISION

    P3 - question posted with Ans by midcha
  9. ahmed abdulla

    SOLVED HARDEST questions for QUICK last day REVISION

    question 9 - P3 http://papers.xtremepapers.com/CIE/...S Level/Mathematics (9709)/9709_s10_qp_31.pdf Solved by midha.ch
  10. ahmed abdulla

    AS BIOLOGY ALL ABOUT MICROSCOPES for MAY/JUNE 2014 EXAMS !!!11

    There you go ! Dont forget me in your prayers! https://www.xtremepapers.com/community/threads/as-all-subjects-practical-tips-some-important-notes-dont-miss.31108/#post-695684
  11. ahmed abdulla

    Physics: Post your doubts here!

    Can some draw the shape of the graph ? ( with explaination ) ? 9 (b) ii
  12. ahmed abdulla

    Chemistry: Post your doubts here!

    I posted a question above if someone can help > > +paper5 on2013
  13. ahmed abdulla

    Mathematics: Post your doubts here!

    Hi . . I am curremtly doing M2 , and started recently doing pastpapers i tried to ask my teacher to help me but he is not able to solve them ! maybe because this is the first year of teaching a level so they find it difficult my request if any one does M2 , plz PM me , so i will be able to...
  14. ahmed abdulla

    Mathematics: Post your doubts here!

    Will be glad to help you when i am free :p
  15. ahmed abdulla

    Mathematics: Post your doubts here!

  16. ahmed abdulla

    Mathematics: Post your doubts here!

    where are your doubts :mad::p
  17. ahmed abdulla

    Physics: Post your doubts here!

    For phy-paper5 our drawing does it have to be in pen/ pencil ??
  18. ahmed abdulla

    Mathematics: Post your doubts here!

    Failure .. see if you can help :p
  19. ahmed abdulla

    Mathematics: Post your doubts here!

  20. ahmed abdulla

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s09_qp_4.pdf 11b(iii)
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