With 2 chem questions!

1. electrochemical reactions are oxidation-reduction reactions that:

a. are capable of generating electric current
b. have unequal oxidation numbers on both sides of the equation
c. only generate the oxidation reaction
d. only generate the reduction reaction

2. in the oxidation part of an oxidation-reduction reaction, the substance undergoing oxidation:

a. loses electrons
b. gains electrons
c. shares electrons
d. combines protons