Zn + Cl2 = ZnCl2
Zn + 2NaOH = Na2ZnO2 + H2
Zn + 2NaOH + 2H2O = Na2[Zn(OH)4] + H2
3Fe + 2H2O + O2 =Fe3O4 +2 H2
Cu + Mg(NO3)2 = реакция не идёт
2Al +3 H2SO4 = Al2(SO4)3 + 3H2
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Zn + Cl2 = ZnCl2
Zn + 2NaOH = Na2ZnO2 + H2
Zn + 2NaOH + 2H2O = Na2[Zn(OH)4] + H2
3Fe + 2H2O + O2 =Fe3O4 +2 H2
Cu + Mg(NO3)2 = реакция не идёт
2Al +3 H2SO4 = Al2(SO4)3 + 3H2