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8. What is the balanced equation when aluminum reacts with copper (II) sulfate?
a. Al + Cu S Al S + Cu
b. 2A1+ 3CuSO4 → Al2(SO4)3 + 3Cu
c. Al + CuSO4 → AISO4 + Cu
d. 2Al + CuSO4 → Al SO4 + 2Cu