Question

when a zinc strip is placed in a copper nitrate solution, the strip becomes coated with copper. write down the oxidation half-reaction for the reaction that takes place.

Answer 1

Zn ==> Zn^+2 + 2e

Answer 2

cathode: Cu^2+ + 2e = Cu
anode: Zn - 2e = Zn^2+
Zn + Cu(NO3)2 = Zn(NO3)2 + Cu

Answer 3

Zn-zn'2+2e