Al2 + 2 CuSO4 → 2 AlSO4 + Cu2
This is an oxidation-reduction (redox) reaction:
2 CuII + 4 e- → 2 Cu0 (reduction)
2 Al0 - 4 e- → 2 AlII (oxidation)
CuSO4 is an oxidizing agent, Al2 is a reducing agent.
Warning: Unknown compound 'Al2'
Warning: Unknown compound 'Cu2'