Question

Which is true of a discharging galvanic cell constructedfrom an aluminum electrode placed in 1 M A1(NO3)3 and a copperelectrode placed in 1 M Cu(NO3) 2?

Half Reaction	Potential
A1³ +(aq) + 3e- ?A1(s)	-1.67 V
Cu²+(aa) + 2e- ?Cu(s)	+0.34 V

a)The aluminum electrode is the cathode.

b)The mass of the copper electrode decreases.

c)Electrons move from the aluminum electrode to the copperelectrode.

d)The decrease in mass of one electrode equals theincrease in mass of the other electrode.