What is the ionic equations for the following metals and aqueous substances? With the same equation what is being oxidize and what is being reduced?

Question

Zn + AgNO3
Zn + CuSO4
Zn + PbNO3

Mg + AgNO3
Mg + CuSO4
Mg + PbNO3

Cu + AgNO3

Answer 1

Here is the first one. All of these are single replacement reactions.

Zn(s) + 2Ag^+(aq) ==> 2Ag(s) + Zn^+2(aq)

Oxidation is the loss of electrons; hence, Zn is oxidized. Ag ion is reduced.