• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

Search results

  1. B

    Chemistry: Post your doubts here!

    Problem is should we show the workings step by step because in some papers there are questions to calculate the moles and then the concentration in same part. If we want we can simplify and write it down in one step like the marking scheme does. But what should we do actually simplify or write...
  2. B

    Chemistry: Post your doubts here!

    Can anybody tell me whether all the workings are needed in the calculations(especially titrations) in paper 3? In marking schemes they put all steps into 1 working step.
  3. B

    Chemistry: Post your doubts here!

    Can anyone please explain to me how to chose the element which forms a oxiding agent or a reducing agent when reacted with water, when the question gives part of the periodic table and asks this question?
  4. B

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s10_qp_23.pdf Q)b)ii) Can anyone please explain why H2O is wrong as the marking scheme only says I-?
  5. B

    Physics / Chemistry / Bio P5 help

    For 52/M/J/2010 Paper, my chemistry teacher gave; a lie big condenser conical flask with a plug(airtight) and thermometer with its bulb dipped halway in solution. conical flask kept on tripod. bunsen burner for heating. and beaker to collect water.
  6. B

    Physics / Chemistry / Bio P5 help

    Thanks for the notes everyone. The notes on Paper 5 tips were very helpful.:)
  7. B

    Chemistry: Post your doubts here!

    ok Abby thanks.
  8. B

    Chemistry: Post your doubts here!

    Are you getting above 36 for the MCQ's?
  9. B

    Chemistry: Post your doubts here!

    So that I can contact you if you are not online.
  10. B

    Chemistry: Post your doubts here!

    Are you getting above 35? And what paper are you doing 21 or 22?
  11. B

    Chemistry: Post your doubts here!

    Thanks for helping because I am having a lot of trouble in the MCQ paper.
  12. B

    Chemistry: Post your doubts here!

    Can I have your e-mail address please?
  13. B

    Chemistry: Post your doubts here!

    Sure I have the MCQ paper in about a month. Shall i e-mail you or shall i ask the questions here?
  14. B

    Chemistry: Post your doubts here!

    Will it a trouble if I ask you questions because I have quite a lot(5 to 6 in 1 paper)? Shall I e-mail you shall i ask from here?
  15. B

    Chemistry: Post your doubts here!

    Mohommed Salik, can you help me out in some MCQ'S? Normally how much do you score for a MCQ paper?
  16. B

    Chemistry: Post your doubts here!

    Who's doing chemistry paper 33?
  17. B

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w04_qp_1.pdf Can anyone please explain questions 5,7,12 and 18?
  18. B

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20%289701%29/9701_w05_qp_1.pdf Can anyone help me with questions 31,33,35,39?
  19. B

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20%289701%29/9701_w05_qp_1.pdf Can anyone help me with questions 3,12,17?
  20. B

    Chemistry: Post your doubts here!

    Yeah we balance. Pb(C2H5)4 + 13.5O2 = PbO + 8CO2 + 10H2O Therefore 1 mol requires 13.5 mol of O2.
Top