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Homework Help: Q in Oxidation and reduction I want chack my answer

  1. Apr 24, 2010 #1
    Hi

    1 )

    show how many electron are transferred in the following equation

    a ) Cu + Ag ----- > Cu^+ + Ag
    B) Zn + cl2 ----- > ZnCl2

    my answer is :
    A) Cu ---- > Cu ^+ + ie-
    1e + Ag^+ ----- > Ag

    then the electron which transfer is ( 1 )



    B ) Zn + cl2 ---- zncl2
    Zn ------ > zn^+2 + 2e-
    4e- cl2 ------- > 2cl

    then the electron which transfer is ( 8 )


    ____________________________________


    Q 2 : which of the following reaction are redox reacion :
    a) Cl2 + 2OH^- ---- > ClO- + H2O
    B) Cu ^2+ + 4 Nh3 -----> [Cu(NH3)4 ]^2+
    C) Ca + f2 ----- > CaF2

    I chose ( C) becuse here Oxidation and reduction in it
     
  2. jcsd
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