Write the formulas of compounds with oxygen (oxides): magnesium oxide

Write the formulas of compounds with oxygen (oxides): magnesium oxide, chlorine oxide (VII), silicon oxide (IV), gold oxide (III), sulfur oxide (VI)

Oxides are complex substances consisting of two elements, one of which is oxygen (oxygen).
They can be in three states of aggregation.
Metal oxides are mostly white solids (excluding CuO (black), MnO2 (brown), Cr2O3 (green)).
Nonmetal oxides can be in three states of aggregation. For example, gases – CO, NO2 (brown); liquids – SO3; solid – SiO2
Oxides are:
The basic ones correspond to bases, acidic acids and amphoteric ones correspond to them.
we write down the formulas of oxides.
Magnesium oxide – MgO – basic oxide
Chlorine (VII) oxide – Cl2O7 – acidic oxide
Silicon (IV) oxide – SiO2 – acidic oxide
Gold (III) oxide – Au2O3
Sulfur (VI) oxide – SO3-acidic oxide