In the redox reaction agno3 + na nano3 + ag, how many electrons were transferred?

One Electron is transferred.

Explanation:

The reaction is as follow,

AgNO ₃ + Na → NaNO ₃ + Ag

Reduction of Ag;

AgNO ₃ + 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.