Answer:
One Electron is transferred.
Explanation:
The reaction is as follow,
AgNO₃ + Na → NaNO₃ + Ag
Reduction of Ag;
AgNO₃ + 1 e⁻ → Ag
Oxidation State +1 0
Oxidation of Na;
Na → Na⁺ + 1 e⁻
Oxidation State 0 +1
Result:
Therefore, Sodium transfers one electron to silver to reduce it.
