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  1. Z

    Can we make organic compounds in p4 with pencil?

    Yeah, the front of the question paper says you can use pencil for diagrams.
  2. Z

    Chemistry Paper One Problems

    Oh I got it. It says Oxygen cannot burn on its own, it can only spread the fire hence non-flammable. :)
  3. Z

    Chemistry Paper One Problems

    Exactly :/
  4. Z

    Chemistry Paper One Problems

    How does that even make sense here? :/
  5. Z

    Chemistry Paper One Problems

    20 When gaseous chemicals are transported by road or by rail they are classified as follows. flammable non-flammable poisonous Which commonly transported gas is non-flammable? A butane B hydrogen C oxygen D propene Why is oxygen non-flammable?
  6. Z

    Chemistry Paper One Problems

    Thank you so much <3 :)
  7. Z

    Chemistry Paper One Problems

    I do :D But what about the second MCQ?
  8. Z

    Chemistry Paper One Problems

    And, 10 The table gives the concentrations and pH values of the aqueous solutions of two compounds, X and Y. Either compound could be an acid or a base. X Y concentration...
  9. Z

    Chemistry Paper One Problems

    7 The Haber process for the manufacture of ammonia is represented by the following equation. N2(g) + 3H2(g) 2NH3(g) ∆H = –92 kJ mol–1 Which statement is correct about this reaction when the temperature is increased? A Both forward and backward rates increase. B The backward rate only...
  10. Z

    Chemistry Paper One Problems

    Please can anybody answer!!!
  11. Z

    Chemistry Paper One Problems

    Yes, but please explain how?
  12. Z

    Chemistry Paper One Problems

    I had some problems in May June 2010, Paper 11: Please help me with my queries, First Problem: 6. Ammonium nitrate, NH4NO3, can decompose explosively when heated. NH4NO3 → N2O + 2H2O What are the changes in the oxidation numbers of the two nitrogen atoms...
  13. Z

    How was your Phy p2 and p5? Mine was terrible.

    Both papers went awesome Alhamdullillah :)
  14. Z

    You wont want to miss this.

    You really made my day. :)
  15. Z

    You wont want to miss this.

    If I get an A* in Stats, I can pull off an A or B?
  16. Z

    You wont want to miss this.

    Hey everybody. I am currently giving A Levels. And I screwed up Physics Paper 4. Do I really have a chance at a B or A if I get all As in other components and a B in practical? My Maths Paper 3 also went bad, I might get a B ( InshahAllah) or a C (which I dont really want) :( in it. I have given...
  17. Z

    Chemistry p5 Problem

    53
  18. Z

    Chemistry p5 Problem

    Please somebody look at october november 2010's paper 5 and tell the reasons for anomalous readings :( Please!
  19. Z

    Physics P-4

    Can someone pull of a B if we get a bad grade in Physics P4? I really messed up my exam.
  20. Z

    Help with Statistics Question

    For the first case, the word "selections" is used hence we learn that it is a Combinations problem, hence we use 9C4. As for the second case we use 9!/2!2! Reason for using 2! twice being that S and E are being repeated in the word.
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