MgCO₃=t=MgO+H2O
2Mg(NO₃)₂=2MgO<span>+4NO</span>₂<span>↑+O</span>₂<span>↑</span>
(CH₃COO)₂Mg=t=MgO+CO₂+CH₃COCH₃
Bi2O3+3SO3=Bi2(SO4)3
Bi2O3+NaHSO4=оксиды с солями не реагируют!
<span>NH4Cl+NaOH-> NH3+NaCl+H2O
4NH3+5O2-> 4NO+6H2O
2NO+O2-> 2NO2->
4NO2+2H2O+O2=4HNO3
2HNO3+Na2O=>2NaNO3</span>+H2O