Помогите по химиРасставьте коэффициенты в уравнениях, найдите реакции разложения: CaO+H2O=Ca(OH)2
CuSO4+Fe=FeSO4+Cu
PbO+SiO2=PbSiO3
Cu(OH)2=CuO+H2O
KBr+Cl2=KCl+Br2
CaCO3=CaO+CO2
NH4Cl=NH3+HCl
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