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  1. Anon

    Books for Chemistry and Physics for o levels

    By Author name, Physics: Charles Chew Tom Duncan Chemistry: Roger Norris John Sadler (Chemistry Matters)
  2. Anon

    Online Games

    For some online flash games, try playing "Learn to Fly" and "Learn to Fly 2" Played them a long time ago, really hilarious.
  3. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    The definition of Endothermic and Exothermic is wrong in it. It is reversed.. just correcting
  4. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    nvm, I found it ! :)
  5. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    This is indeed helpful. I would like to know where did you get it from... BTW, I usually crop up the image in Ms Paint after taking a screenshot, so to reduce upload time EDIT: ignore the "BTW" thing. I just noticed it is a attachment
  6. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    memyself15: earliar I had read your post, and did the very same. :) Just want to confirm: -All nitrates are soluble except for barium nitrate. -All sulphates are soluble except calcium, barium(they have low solubility) -All oxides are insoluble except the Alkali metals and calcium. -All...
  7. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    OK, so am now going for the book.. I might just attempt this again later in the night. Again, thanks for your help. You dont realise how much it helped me ! BYe for now. :Rose:
  8. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    Which one first? MCQs or Book?
  9. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    ANd yes, your answer is right, its B
  10. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    I am doing s10_qp_12 (j 2010, ) link: http://www.xtremepapers.com/CIE/Cambrid ... _qp_12.pdf
  11. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    BTW Salman, What should I do, in Chemistry now? Read book, or continue with pastpapers? or something else?
  12. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    Another question :( I am putting halt at doing pastpapers. It obviously look, I should better read the books first.. :(
  13. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    Right again Salman It is A. I dont get what A means. And I can assure you, I am more confused then you. Why isnt it B? Catalyst ofcourse dont take part in reaction!
  14. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    understood.
  15. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    never knew I was sooo pathetic at chem... *sigh* This one: I thout it was B, it isnt !!
  16. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    I got it, the salt analysis thing one are the ionic precipitate reaction. IN which category does the equation in C qualifies?
  17. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    Right again Salman.. Explain a bit more This is Ionic precipitate reaction?
  18. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    Another prob: Here is the ques:
  19. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    Chemistry is not one of the things I am best at... And thanks again :)
  20. Anon

    Biology; Chemistry; Physics: Post your doubts here!

    WEll Actually I know the answer, and it is Hydrogen.. but the thing was, I deduced it was hydrogen, due to the fact alone that cylinder was inverted. I couldnt find the purpose of putting CaCl in the question.. Thanks for clearing. I din know it was drying agent.. I am doing J 2010 pastpapers...
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