+I, N2O, Hg2O, +II, PbO, CaO, MgO, +III, N2O3, Al2O3, +IV, CO2, SO2, NO2, TiO2, +V, P2O5, N2O5, +VI, SO3, CrO3, +VII, Mn2O7, Cl2O7, +VIII, OsO4

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