ZnSO4 + Cu → MgSO4 + Cu → FeCl3 + Cu → AgNO3 + Cu → HCl + Cu →  CuSO4 + Zn →  MgSO4 + Zn →  FeCl3 + Zn →  HCl + Zn →  CuSO4 + Mg →  ZnSO4 + Mg →  FeCl3 + Mg →  AgNO3 + Mg →  HCl + Mg →  show all work

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