Question

Яка валентність марганцю в оксидах,що мають формули:Mn2O3,MnO,MnO2,Mn2O7,MnO3? Дууже прошу допоможііть ,розгорнуту відповідь!!!!!!

Answer 1

Валентность=степени окисления. Т.е. у Mn2O3-3, MnO-2, MnO2-4, Mn2O7-7, MnO3-6

Answer 2

Valence of Manganese in Oxides

The valence, or oxidation state, of manganese (Mn) in various oxides can be determined by analyzing the chemical formula of each compound. Here is the valence of manganese in the oxides you mentioned:

1. Mn2O3: In manganese(III) oxide (Mn2O3), manganese has a valence of +3. This means that each manganese atom in the compound has lost three electrons and has a positive charge of +3.

2. MnO: In manganese(II) oxide (MnO), manganese has a valence of +2. Each manganese atom in the compound has lost two electrons and has a positive charge of +2.

3. MnO2: In manganese(IV) oxide (MnO2), manganese has a valence of +4. Each manganese atom in the compound has lost four electrons and has a positive charge of +4.

4. Mn2O7: In manganese(VII) oxide (Mn2O7), manganese has a valence of +7. Each manganese atom in the compound has lost seven electrons and has a positive charge of +7.

5. MnO3: There is no known compound with the formula MnO3. It is possible that you may have made a typographical error or the compound you mentioned is not commonly known.

Please note that the valence of manganese in these oxides is determined by the number of electrons gained or lost by the manganese atom to achieve a stable configuration. The valence can vary depending on the specific compound and its chemical structure.

I hope this helps! Let me know if you have any further questions.