Question

1. If electrons are gained in a reaction, that species
a. is reduced ***
b. is oxidized
c. is the reducing agent
d. ends up with a higher oxidation state

2. The anode of a voltaic cell
a. provides a pathway for the diffusion of anions
b. attracts diffusing cations
c. is the electrode where oxidation occurs***
d. is the electrode where reduction occurs

3. The oxidizing agent in the reaction below is 3CuCl2(aq)+2Al(s) →3Cu(s)+2AlCl3(aq)
a. Cu2+ ***
b. Al
c. Cu
d. Al3+

Answer 1

Also, did I balance this equation correctly, Cu(s)+ 2NO3-(aq)+ 4H+(aq)→ Cu2+(aq)+ 2NO2(g)+ 2H2O(l)?

Answer 2

Everything looks ok to me. Good work. Keep up the good work.