chemistry

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For the reactions that occurred spontaneously in the individual tables, balance these reactions assuming they are in an acidic solution.

Reaction 1:
Cu
I^-
Ag
Br^-

Reaction 2:
Zn
Pb
Cu
Ag

Reaction 3:
Cl2
Br2
I2

Reaction 1
I 2(aq) Cu2 + (aq) Ag + (aq) Br2 (aq)

Reaction 2
Ag + (aq) Pb2 + (aq) Cu2 + (aq) Zn2 +(aq)

Reaction 3
Br - (aq) Cl - (aq) I - (aq)

  • chemistry -

    Your notation is still somewhat confusing to me but here is what you do for one of the reactions. The others are done the same way.
    For the copper, Ag^+ reaction:
    Cu ==> Cu^+2 + 2e
    Ag^+ + e ==> Ag
    ====================
    The electrons must be kept equal; therefore, multiply the first equation by 1 and the second equation by 2, then add them.
    Cu + 2Ag^+ ==> Cu^+2 + 2Ag.

    The others are done the same way.

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