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-   -   Deriving chemical equations from balanced net ionic equations? (https://www.askmehelpdesk.com/showthread.php?t=172526)

  • Jan 14, 2008, 09:39 PM
    liso12
    Deriving chemical equations from balanced net ionic equations?
    1.) NaCl (aq) + MnO2 (s) -------->Mn2+ (aq) + Cl2 (g) in H2SO4


    2.) KCN (aq) + KMno4 (aq) --------> CNO- (aq) + MnO2(s) in KOH
  • Jan 21, 2008, 12:44 AM
    justcurious55
    1.) NaCl (aq) + MnO2 (s) -------->Mn2+ (aq) + Cl2 (g) in H2SO4
    This one is not possible. In order for you to end up with h2so4, you have to have s in the beginning of the reaction. It can't just appear.


    2.) KCN (aq) + KMno4 (aq) --------> CNO- (aq) + MnO2(s) in KOH
    KCN + KMnO4 + H2O -> CNO- +MnO2 + KOH +H2O

    KCN + KMnO4 + 2H2O -> CNO- +MnO2 + 2KOH +H2O
    2 K 1, 2
    1 C 1
    1 N 1
    1 Mn 1
    5,6 O 5, 6
    2,4 H 3, 4

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