FeSO4 + Mg = MgSO4 + Fe
Fe[2+] + SO4[2-] + Mg[0] = Mg[2+] + SO4[2-] + Fe[0]
Fe[2+] + Mg[0] = Mg[2+] + Fe[0]
FeSO4 + Ni = \\\
FeSO4 + Zn = ZnSO4 + Fe
Fe[2+] + SO4[2-] + Zn[0] = Zn[2+] + SO4[2-] + Fe[0]
Fe[2+] + Zn[0] = Zn[2+] + Fe[0]
FeSO4 + Cu = \\\
3FeSO4 + 2Al = Al2(SO4)3 + 3Fe
3Fe[2+] + 3SO4[2-] + 2Al[0] = 2Al[2+] + 3SO4[2-] + 3Fe[0]
3Fe[2+] + 2Al[0] = 2Al[2+] + 3Fe[0]
FeSO4 + Mg = MgSO4 + Fe
Fe[2+] + SO4[2-] + Mg[0] = Mg[2+] + SO4[2-] + Fe[0]
Fe[2+] + Mg[0] = Mg[2+] + Fe[0]
FeSO4 + Ni = \\\
FeSO4 + Zn = ZnSO4 + Fe
Fe[2+] + SO4[2-] + Zn[0] = Zn[2+] + SO4[2-] + Fe[0]
Fe[2+] + Zn[0] = Zn[2+] + Fe[0]
FeSO4 + Cu = \\\
3FeSO4 + 2Al = Al2(SO4)3 + 3Fe
3Fe[2+] + 3SO4[2-] + 2Al[0] = 2Al[2+] + 3SO4[2-] + 3Fe[0]
3Fe[2+] + 2Al[0] = 2Al[2+] + 3Fe[0]