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  1. Y

    Physics, Chemistry and Biology: Post your doubts here!

    Guys I got a question 23: http://www.xtremepapers.com/papers/CIE/Cambridge%20IGCSE/Biology%20(0610)/0610_w10_qp_11.pdf
  2. Y

    Physics, Chemistry and Biology: Post your doubts here!

    Guys if we were asked for the graphs for enzymes based on temperature and Ph are these correct.
  3. Y

    Physics, Chemistry and Biology: Post your doubts here!

    Yup I got it. Thanks. Because the solid is now more concentrated.
  4. Y

    Physics, Chemistry and Biology: Post your doubts here!

    I have a doubt in 15 http://www.xtremepapers.com/papers/CIE/Cambridge%20IGCSE/Chemistry%20(0620)/0620_w08_qp_1.pdf
  5. Y

    Physics, Chemistry and Biology: Post your doubts here!

    Thanks.
  6. Y

    Physics, Chemistry and Biology: Post your doubts here!

    Yes, I got it. It is not so difficult after all. So lead iodide is insoluble?
  7. Y

    Physics, Chemistry and Biology: Post your doubts here!

    Anyone?
  8. Y

    Physics, Chemistry and Biology: Post your doubts here!

    They said moves from a region of higher to lower concentration so it is definitely diffusion.
  9. Y

    Physics, Chemistry and Biology: Post your doubts here!

    Guys I got a doubt in q 3: http://www.xtremepapers.com/papers/CIE/Cambridge%20IGCSE/Chemistry%20(0620)/0620_w08_qp_1.pdf
  10. Y

    Physics, Chemistry and Biology: Post your doubts here!

    Oh okay, thanks.
  11. Y

    Physics, Chemistry and Biology: Post your doubts here!

    Can someone explain q 17: http://www.xtremepapers.com/papers/CIE/Cambridge%20IGCSE/Chemistry%20(0620)/0620_s07_qp_1.pdf Shouldn't increased particle size speed up a reaction?
  12. Y

    Physics, Chemistry and Biology: Post your doubts here!

    Try a balanced equations for each compound till you get 802. For B: C6H90H + 802 -----> 6CO2 + 5H20 So one molecule of C6H0OH reacted with eight molecules of oxygen.
  13. Y

    Physics, Chemistry and Biology: Post your doubts here!

    Nah that wasn't the big problem, I found out that vi is same on both sides. The pH part confused me though.
  14. Y

    Physics, Chemistry and Biology: Post your doubts here!

    I got it thanks.
  15. Y

    Physics, Chemistry and Biology: Post your doubts here!

    Guys, can you explain to me q 19 and q 22: http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Chemistry (0620)/0620_s08_qp_1.pdf
  16. Y

    Physics Paper 3 2012 discussion (I have the qp)

    Hey man, can you post the graph question?
  17. Y

    Chemistry Doubts: IGCSE Paper 3

    Thanks man.
  18. Y

    Chemistry Doubts: IGCSE Paper 3

    Can some one explain to me 9 c) http://www.xtremepapers.com/papers/CIE/Cambridge%20IGCSE/Chemistry%20(0620)/0620_s09_qp_3.pdf
  19. Y

    Physics, Chemistry and Biology: Post your doubts here!

    The gradient of the graph is decreasing.
  20. Y

    Just done with paper 61 Physics !!!!!!!!!!!!!!!

    He is faking all this, nobody can do paper 61 now.
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