In an operating zinc-copper electrochemical cell, the oxidizing agent:
Loses electrons to the cations.
Gains electrons from the anions.
Loses electrons at the anode.
Gains electrons at the cathode.
What are the oxidation state of vanadium in the ions VO²⁺ and VO4³⁻ respectively?
+6 and +5.
+6 and +8.
+4 and +5.
+4 and +8.
In an operating electrochemical cell, the function of a salt bridge is to:
Allow a non-spontaneous reaction to occur.
Transfer electrons from the cathode to the anode.
Allow hydrolysis to occur.
Permit the migration of ions within the cell.
