восстановите левую и правую часть уравнений:
1).... --> MnBr2 + Br2+2H2O
2)....--> 2CaCO3↓ + 2H2O
3)....→ 4Fe(OH)3↓ + 4Na2SO4
4) CuS + 4H2O2 →………
5) 6HNO3 + P2O5→……
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