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  1. asd

    Biology; Chemistry; Physics: Post your doubts here!

    Metals below H, can not react with Acid. Since they cannot displace the H ion in the acid. Metals above H will react with acids. Metal FAR above H (Like Zn, Al, Fe) can even react with dilute acid/Hot water. And metals FURTHER above like Na, Rb, K (Most group 1 metals) Mg, Ca, will react with...
  2. asd

    Biology; Chemistry; Physics: Post your doubts here!

    Well, I think B
  3. asd

    Biology; Chemistry; Physics: Post your doubts here!

    What's with the Exclamation mark (!) after every sentence? :/ :D :P
  4. asd

    Biology; Chemistry; Physics: Post your doubts here!

    B?
  5. asd

    Biology; Chemistry; Physics: Post your doubts here!

    flammability decreases down the series, in alkanes i guess, no?
  6. asd

    Biology; Chemistry; Physics: Post your doubts here!

    Addition polymer is poly(ethene) and it used in making plastics/plastic bags/cling films/etc :D
  7. asd

    Biology; Chemistry; Physics: Post your doubts here!

    not even uses :O Don't scare me man
  8. asd

    Biology; Chemistry; Physics: Post your doubts here!

    That's right, and important to note that the monomers in addition polymers originally have a double bond, which is then broken as they form polymers. And umm, teflon and perspex not in syllabus :D
  9. asd

    Biology; Chemistry; Physics: Post your doubts here!

    Maybe that's part of O level's strategy --- Give easy papers, and move the percentile up so that they don't have to give A/A* grades that often.
  10. asd

    Biology; Chemistry; Physics: Post your doubts here!

    Expecting full?
  11. asd

    physics paper 1,2 ........can we discuus da papper nw?

    What's ATC, Alternative to Crap ?
  12. asd

    Maths, Addmaths and Statistics: Post your doubts here!

    What's the equation? y=|(x-5)^2| ? :D
  13. asd

    TAGGY TALKY!!

    LMAO, I was like 'why are they fighting like girls?' and then I saw Halo's post, and then applepie1996 's Gender.. -__-
  14. asd

    Soja bhai, itni rat tak parte rehte ho? :D

    Soja bhai, itni rat tak parte rehte ho? :D
    • asd
    • Profile post
  15. asd

    :P

    :P
    • asd
    • Profile post comment
  16. asd

    Biology; Chemistry; Physics: Post your doubts here!

    did they tell you the amount of sodium sulfate? They didn't either. Just the concentration (the no. of moles in 1 dm3). What do you expect will the concentration of water be? It's just water.
  17. asd

    Biology; Chemistry; Physics: Post your doubts here!

    Water dissociates into H+ and OH- . So There can't be 2 H+ ions since only one H atom forms the Positive Ion, while the other stays with oxygen to from OH-
  18. asd

    Biology; Chemistry; Physics: Post your doubts here!

    :)
  19. asd

    Biology; Chemistry; Physics: Post your doubts here!

    Because the formula is Na2SO4 2 Na+ ions will be dissociated..while others will be 1 each (OH- , SO4 2- , H+ ) daredevil
  20. asd

    Biology; Chemistry; Physics: Post your doubts here!

    Its C. 74.5 -35.5 = 39 which is potassium . So YCl. malay
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