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  1. #1

    Aug 2011
    1,442




    1-
    a,b,c,...............
    :

    Al2O3 + HCl AlCl3 + H2O

    a b c d

    a c
    2a = c

    a d
    3 a = d

    b d :
    b = 2 d

    b c
    b = 3 c



    2a = c

    3 a = d

    b = 2 d

    b = 3 c


    a = 2
    2a = c
    c = 2 * 2 c = 4
    d= 3 a
    d = 2 * 3 d = 6
    b=2d
    b = 12


    2Al2O3 + 12HCl 4 AlCl3 + 6 H2O






  2. #2

    Jul 2011
    -
    4,543

    :

    SARAH

  3. #3

    Dec 2011
    292

    :




  4. #4

    Jul 2012
    5,302

    :



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