Consider the Galvanic Cell $\mathrm { Zn } ( s ) \left| \mathrm { Zn } ^ { 2 } + ( a q ) \right| | \mathrm { Pb } 2 + ( a q ) | \mathrm { Pb } ( \mathrm { s } )$

Consider the galvanic cell, $\mathrm { Zn } ( s ) \left| \mathrm { Zn } ^ { 2 } + ( a q ) \right| | \mathrm { Pb } 2 + ( a q ) | \mathrm { Pb } ( \mathrm { s } )$ Which one of the following changes to the cell would cause the cell potential to increase (i.e.,become more positive) ?

A) increase the Zn²⁺ concentration
B) increase the Pb²⁺ concentration
C) increase the mass of Zn(s)
D) decrease the mass of Zn(s)

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