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General questions

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  • MyPillowTalks's Avatar
    15,782 posts since Nov '06
    • For literature:

      Anyone here using the book Island voices?

      If yes, i need some help in the story:

      1. The History of Tea

      2. An obituary for fifth aunt came late

      3. A dream of China

      For English:

      Why is it that the answers that i got for the comprehension qns seems correct to me, but it is still wrong?

      For Maths:

      In the topic matrices, especially for the problem sums, how do u all get the data and put them into the matrices form? eg. form 2 matrices to show the sum of money collected

      For Chemistry:

      how to properly balance equation?

      When and why i must do sth like : Mg(something)2, why sometimes must bracket and put 2?

      Edited by MyPillowTalks 19 Aug `08, 8:32PM
  • yong93's Avatar
    3,085 posts since May '07
  • wishboy's Avatar
    1,269 posts since Aug '05
    • the bracket is for complex ions like CO3 2-, SO4 2-, NO3 -, NH4 +, OH -
      normal elements no need to bracket

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