1.Расставьте коэффициенты и укажите тип реакции

1-в А) HCl +AgNO3→ AgCl +HNO3

Б) Ва(OН)2 +H2SO4→ ВаSO4 + H2O

В) Na3РO4+CaО →Ca3(РO4)2 +Na2O
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