. Из списка веществ выпишите все оксиды и
классифицируйте их:
Na2SO3, H2SO4, CrO3, HNO3, MgO, NaNO3, KO, Ba(OH)2,
P2O5, NO, NH3, H2SO4, ZnCl2, H3PO4, CaO, KNO3, NaOH,
CO, BeO, CuBry, SiO2, Fe2O3, Cl, Br2O7, Rb3PO4, PbO2
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