Ответ:
Mg + CuSO4= MgSO4 + Cu
2HCi + Ni = NiCi2 + H2
Cr2O3 + 2Al = Al2O3 + 2Cr
Mg + H2O = Мg(OH)2 + H2
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Ответ:
Mg + CuSO4= MgSO4 + Cu
2HCi + Ni = NiCi2 + H2
Cr2O3 + 2Al = Al2O3 + 2Cr
Mg + H2O = Мg(OH)2 + H2