Question

3Ag(s) + Au(NO3)3(aq) ——> Au(s) + 3AgNO3(aq)

What is the balanced net ionic equation
Which reactant is oxidized and which is reduced
Which reactant is the oxidizing agent and which is the reducing agent
Write balance half reaction for the oxidation and reduction

Answer 1

The balanced net ionic equation is

3Ag(s) + Au³⁺(aq)  ——>      Au(s) + 3Ag⁺(aq)

During this reaction Ag is oxidized and it act as reducing agent.

Au(NO₃)₃(aq) is reduced and it act as oxidizing agent.

The balance half reaction for the oxidation and reduction

For oxidation half   3Ag(s)  ——>  3Ag⁺(aq) + 3e^-

For reduction half   Au³⁺(aq) + 3e^- ——>  Au(s)