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  1. Haya Ahmed

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w11_qp_22.pdf Q4 (iv) someone explain please ! :/
  2. Haya Ahmed

    Physics: Post your doubts here!

    Thanks a lot can you answer this question too ! ^^ http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w12_qp_22.pdf Q5 (b) with explaination :)
  3. Haya Ahmed

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s10_qp_22.pdf Q6d and Q7b(ii) (1) and http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s06_qp_2.pdf Q7(a) and I have no idea about doing questions...
  4. Haya Ahmed

    Physics: Post your doubts here!

    What is the difference between slit separation and slit width and can Someone explain Q5 (c) here in this paper http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_w07_qp_2.pdf Thanks ! ^_^
  5. Haya Ahmed

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s06_qp_2.pdf Q5 c can someone explain ! thanks ^^ and Q7 (a) what do you mean by lamp is shortened
  6. Haya Ahmed

    Thanks xD

    Thanks xD
  7. Haya Ahmed

    Anytime ! :P

    Anytime ! :P
  8. Haya Ahmed

    Little knowledge of science makes a person an atheist, but in-depth knowledge of science makes a...

    Little knowledge of science makes a person an atheist, but in-depth knowledge of science makes a person a believer in God.
  9. Haya Ahmed

    Aww Thanks :* ^_^ !!

    Aww Thanks :* ^_^ !!
  10. Haya Ahmed

    Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Physics%20(9702)/9702_w03_qp_2.pdf Q6 (c) can someone explain please ?! :) Thanks ^_^
  11. Haya Ahmed

    Chemistry: Post your doubts here!

    Can someone help me with any pdf(s) or tips or ideas about paper 3 chem AS because my exam is tomorrow so if you can help me please do :)
  12. Haya Ahmed

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w11_qp_22.pdf What is the difference in Question 3(b) iii and Q3 (c) iii why is the answer of the enthalpy change here is positive and here is negative !! can someone help me Please!!!
  13. Haya Ahmed

    Chemistry: Post your doubts here!

    In definition what am I supposed to say !
  14. Haya Ahmed

    Chemistry: Post your doubts here!

    what do we call nucleiphiles and electrophiles .. atoms or molecules or compounds or elements or substances
  15. Haya Ahmed

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s11_qp_23.pdf Q2e how to calculate the number of electrons ?!
  16. Haya Ahmed

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s12_qp_21.pdf Q5 b(ii) and (iii) explain why we multiplied by 2 in (i) arent we supposed to divide by 2 ?
  17. Haya Ahmed

    Chemistry: Post your doubts here!

    So is it wrong If we showed - sign ? robinhoodmustafa
  18. Haya Ahmed

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w13_qp_23.pdf Q2 d (ii) .. why the answer is Positive not negative ?? robinhoodmustafa are you confident with your answer ?! >.> .. I think It is not the reason :|
  19. Haya Ahmed

    Chemistry: Post your doubts here!

    look at this http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w13_qp_23.pdf Q2 d (ii) .. why the answer is Positive not negative ??
  20. Haya Ahmed

    Chemistry: Post your doubts here!

    Anyways I got it form my textbook :3 .. It is Al with heating + O2 gives Al2O6 which is colorless gas at room temp and Al + O2 ---> without heating gives AlCl3 (Colorless liquid) which can form to vapour (gas) easily by bunsen burner .. Hope I corrected your Info ^_^
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