Based on the Half-Reactions and Their Respective Standard Reduction Potentials

Short Answer

Based on the half-reactions and their respective standard reduction potentials below,the standard cell potential for the reaction that is expected to occur is ________ V.
Ag⁺(aq)+ e^- → Ag(s)0.80 V
2 H⁺(aq)+ 2 e^- → H₂(g)0.00 V
Cd²⁺(aq)+ 2 e^- → Cd(s)-0.40 V