A cell consists of a magnesium electrode immersed in a solution of magnesium chloride and a silver electrode immersed in a solution of silver nitrate.The two half-cells are connected by means of a salt bridge.It is possible to increase the voltage of the cell by
A) decreasing the concentration of Mg2+ and increasing the concentration of Ag+.
B) adding sodium chloride to both half-cells.
C) increasing the size of the Mg electrode and decreasing the size of the Ag electrode.
D) decreasing the size of the Mg electrode and increasing the size of the Ag electrode.
E) increasing the concentration of Mg2+.
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