Question

Формулы оксидов металов с валентнастю 1,2,3 !!!!!!

Answer 1

Li2O     1 валент
CaO       2 валент
Al2O3    3 валент

Answer 2

Formulas of Metal Oxides with Valences 1, 2, and 3

Metal oxides are compounds formed when a metal reacts with oxygen. The valence of a metal refers to the charge of the metal ion in the compound. Here are the formulas of metal oxides with valences 1, 2, and 3:

Metal Oxides with Valence 1: - Aluminum oxide: Al2O3- Iron(II) oxide: FeO- Iron(III) oxide: Fe2O3- Chromium(II) oxide: CrO- Chromium(III) oxide: Cr2O3- Chromium(VI) oxide: CrO3 Metal Oxides with Valence 2: - Calcium oxide: CaO- Magnesium oxide: MgO- Barium oxide: BaO- Zinc oxide: ZnO- Copper(II) oxide: CuO- Lead(II) oxide: PbO- Lead(IV) oxide: PbO2 Metal Oxides with Valence 3: - Aluminum oxide: Al2O3- Iron(III) oxide: Fe2O3- Chromium(III) oxide: Cr2O3- Manganese(III) oxide: Mn2O3- Manganese(VII) oxide: Mn2O7 Please note that these are just a few examples of metal oxides with valences 1, 2, and 3. There are many more metal oxides with different valences and formulas.

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