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  1. Z

    Computing P3 Help

    Hey everyone, if anybody needs help with any Computing Paper 3 question, I'd be glad to answer it! Just post it on this thread and I or anybody else will answer it.
  2. Z

    Mathematics Paper 3 Thread!

    Pure Mathematics - Paper 3 This thread is for Paper 3 of Mathematics only! Post any questions regarding the topics and me or anyone else who is willing to can answer your questions! Let's have a rule: In order to post a question, you must answer the question of a previous poster! This is to...
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    Tips for #31-40 Chemistry MCQs

    Even though this is largely common sense, I thought it'd be useful for those people who are having difficulties with the last ten problems in the chemistry paper 1. ->If the first choice is obviously incorrect, the answer is automatically C ->If the second choice is obviously incorrect, the...
  4. Z

    Chemistry MCQ Question

    The question is attached. The mark scheme says C, why?
  5. Z

    Common Values for AS Physics?

    After going through a bunch of physics paper 2s, I've seen a lot of those problems where you have to give an approximate value of things, such as the mass of an apple or the speed of sound in air. Could someone post a list of the common values?
  6. Z

    The Ultimate AS Physics Thread

    So as the CIE AS Physics theory papers are coming up in a few days, I thought it would be a good idea to make an organized thread which could be easy to navigate through for last minute revision. Basically, if a normal person was just browsing this thread, he would have a lot to gain just by...
  7. Z

    Mechanics!

    I was wondering if someone could help me with this M1 problem: http://www.xtremepapers.me/CIE/International%20A%20And%20AS%20Level/9709%20-%20Mathematics/9709_s10_qp_43.pdf I have read the mark scheme, but I still do not understand parts 2 and 3. All help appreciated!
  8. Z

    Heat of Combustion Problems?

    Hi, I was wondering if someone could help me on this enthalpy problem? The only problem I have with enthalpy is when combustion is involved. It's question 1(e) in this: http://www.xtremepapers.me/CIE/International%20A%20And%20AS%20Level/9701%20-%20Chemistry/9701_w07_qp_2.pdf All help...
  9. Z

    Grade Thresholds?

    So I just wanted to get this clear -- how exactly are we graded on our exams, and what part does the grade threshold play? For example, the Oct/Nov 2010 Chemistry Grade threshold (http://www.xtremepapers.me/CIE/International%20A%20And%20AS%20Level/9701%20-%20Chemistry/9701_w10_gt.pdf) says that...
  10. Z

    Bond angles in Chemistry?

    I was wondering what would be the appropriate way to write bond angles in chem paper 2. For example, say you have to find the H-C-H bond angle in CH2=C=O. I would write 120 degrees. However, the mark scheme gives a range of 117-120. Do I have to state the range in my answer or does that just...
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