Question
a.
Ag ==> Ag⁺² + 2e and Cu⁺² + 2e ==> Cu
b.
Cu ==> Cu⁺² + 2e and Ag ==> Ag⁺² + 2e
c.
2Ag⁺¹ + 2e ==> 2Ag and Cu ==> Cu⁺² + 2e
d.
2Ag ==> 2Ag⁺¹ + 2e and Cu⁺² + 2e ==> Cu
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