Question

Q1. Which reaction represents the half-reaction of lead (Pb) and the SRP value that could be found on an electric potential table?

Q2.Which value represents the standard cell potential of the spontaneous overall reaction?

Answer 1

the first one is c

Step-by-step explanation:

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Answer 2

The reaction that represents the half-reaction of lead Pb is
Pb2+(aq) + 2e- → Pb(s)
and the SRP value on electric potential table is -0.13V.

To find the overall potential of a reaction, two half reactions can be added
together:
Oxidation: Fe(s) → Fe2+(aq) + 2e- +0.44V
Reduction: Pb2+(aq) + 2e- → Pb(s) - 0.13 V
Overall reaction: Fe(s) + Pb2+(aq) → Pb(s) + Fe2+(aq) +0.31V

This positive voltage for the overall reaction is spontaneous.