Two redox systems are shown below:
Zn2+(aq)+2e−⇌Zn(s)Eθ=−0.76 V \text{Zn}^{2+}(\text{aq}) + 2\text{e}^- \rightleftharpoons \text{Zn}(\text{s}) \quad E^{\theta} = -0.76\text{ V} Zn2+(aq)+2e−⇌Zn(s)Eθ=−0.76 V Ag+(aq)+e−⇌Ag(s)Eθ=+0.80 V \text{Ag}^{+}(\text{aq}) + \text{e}^- \rightleftharpoons \text{Ag}(\text{s}) \quad E^{\theta} = +0.80\text{ V} Ag+(aq)+e−⇌Ag(s)Eθ=+0.80 VWhich species in the two redox systems is the strongest reducing agent?
Zn2+(aq)\text{Zn}^{2+}(\text{aq})Zn2+(aq)
Zn(s)\text{Zn}(\text{s})Zn(s)
Ag+(aq)\text{Ag}^{+}(\text{aq})Ag+(aq)
Ag(s)\text{Ag}(\text{s})Ag(s)
