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  1. thementor

    O Levels Statistics (4040) November 2013 paper discussion!

    threat? :P
  2. thementor

    HALLO GYS HOW WAS THE CHEMISTRY PAPER? (5070)

    Precisely. And its clearly written in the examiner tips that Ammonium Hydroide is wrong, despite the fact that it is written in many books. It is actually Aquesous Ammonia.
  3. thementor

    HALLO GYS HOW WAS THE CHEMISTRY PAPER? (5070)

    If you wrote this, then its correct, 2 marks will be awarded
  4. thementor

    HALLO GYS HOW WAS THE CHEMISTRY PAPER? (5070)

    yup ;)
  5. thementor

    HALLO GYS HOW WAS THE CHEMISTRY PAPER? (5070)

    LOL nope it was section A Q2
  6. thementor

    HALLO GYS HOW WAS THE CHEMISTRY PAPER? (5070)

    Knightmare11 your answer is totally wrong!! The question said, how does the catalyst affect the rate of the reaction, NOT THE YEILD. A catalyst has no effect on the yield, so writing about the yeild of water will not get you any marks, The actual answer is: A catalyst speeds up the rate of the...
  7. thementor

    HALLO GYS HOW WAS THE CHEMISTRY PAPER? (5070)

    The marking scheme only needs "produce ammonia", "after reaction with calcium hydroxide", "ammonia escapes (gas)" Your answer would get full marks :)
  8. thementor

    HALLO GYS HOW WAS THE CHEMISTRY PAPER? (5070)

    Calcium hydroxide is a base added to the soil to neutralise acidity. But when ammonium sulphate is also present, they will react to produce ammonia which will escape as a gas. and for the second. Aluminium reacts with oxygen in air to form a thin tough coat of aluminum oxide which does not flake...
  9. thementor

    HALLO GYS HOW WAS THE CHEMISTRY PAPER? (5070)

    that was the second question of section B. the one where we had to calculate the mass of ethanol produced right. yeah that answer was : 0.02 tonnes of ethanol formed since Mr = 28 1 mole of ethene = 28 g but only 5% of ethene is converted to ethanol so 1.4g of ethanol produced 0.4 tonnes of...
  10. thementor

    HALLO GYS HOW WAS THE CHEMISTRY PAPER? (5070)

    The last question had four or five parts, which part u talking about
  11. thementor

    CIE October/November 2013 Examination Timetables Available!

    since the cie website changed the links have been damaged
  12. thementor

    HALLO GYS HOW WAS THE CHEMISTRY PAPER? (5070)

    it was easy, well easy compared to june
  13. thementor

    Chemistry Help!

    Please tell me the answer of this question: 5070 November 2005 Paper 2 Question 5 (a), the calculation is bugging me! And as far as I think the ms is wrong, because there are other two misprints.
  14. thementor

    Results: CIE May/June 2013 Examination Series

    Awesome dude
  15. thementor

    wow dam that was good,,,uptil now i have 4A*'s......i have to get three more to match up to you.

    wow dam that was good,,,uptil now i have 4A*'s......i have to get three more to match up to you.
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  16. thementor

    Results: CIE May/June 2013 Examination Series

    giving them in nov
  17. thementor

    wbu?

    wbu?
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  18. thementor

    Physics and biology both A*

    Physics and biology both A*
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  19. thementor

    Cambridge Result May June 2013.

    Got my results: Physics and Biology both A*'s
  20. thementor

    Results: CIE May/June 2013 Examination Series

    Got my results : Physics A* Biology A* Overall olevel results from past sessions: Math -A* Pak.Std-A* Urdu- A Islamiyat- B
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