standard cell potential questions

Nov 2019
1
0
Canada
1. Cr(s) + AlCl3(aq) = CrCl3 + Al(s)
2. 2AgNO3(aq)n+ 2H2O(aq) = 2Ag (s) +HNO3(aq) +O2

3. Will the mass increase of the cathode be equal to the mass decrease of the anode in a galvanic cell?