Question

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

Answer 1

The balanced reaction equation is:

3Ag(s) + Au(NO₃)₃(aq) $\rightarrow$ Au(s) + 3AgNO₃(s)

The reduction half-reaction is:

Au³⁺(aq) +3e^-→ Au(s) ,

the oxidation half-reaction is:

Ag(s) → Ag⁺ + e^-.

This reaction is possible because silver (Ag) is situated higher than gold (Au) in the activity series of metals.