Question

Ниже представлены формулы веществ основных классов неорганических соединений. HCl, ZnO, NaCl, Al2O3, H2SO4, NaOH, Cr2O3. Выпишите формулы оксидов, подчеркните металл в оксиде. Как классифицировать эти оксиды?

Answer 1

Ответ:

ZnO - Оксиды/Амфотерные оксиды

Al2O3 - Оксиды/Амфотерные оксиды

Cr2O3 - Оксиды/Амфотерные оксиды

Все оксиды амфотерные.

Объяснение:

Answer 2

Formulas of Inorganic Compounds:

The formulas of the given compounds are as follows: - HCl - ZnO - NaCl - Al2O3 - H2SO4 - NaOH - Cr2O3

Oxides and Their Classification:

The oxides and their classifications are as follows:

- HCl: This is not an oxide. It is a binary compound formed between hydrogen and chlorine. - ZnO: This is an oxide where the metal is zinc. It is classified as a basic oxide. - "Zinc oxide is an inorganic compound with the formula ZnO. It is a white powder that is insoluble in water." [[1]] - NaCl: This is not an oxide. It is a binary compound formed between sodium and chlorine. - Al2O3: This is an oxide where the metal is aluminum. It is classified as an amphoteric oxide. - "Aluminium oxide is a chemical compound of aluminium and oxygen with the chemical formula Al2O3." [[2]] - H2SO4: This is not an oxide. It is a binary compound formed between hydrogen, sulfur, and oxygen. - NaOH: This is not an oxide. It is a binary compound formed between sodium, oxygen, and hydrogen. - Cr2O3: This is an oxide where the metal is chromium. It is classified as a basic oxide. - "Chromium(III) oxide is the inorganic compound of the formula Cr2O3." [[3]]

In summary, the given compounds include basic oxides (ZnO, Cr2O3) and an amphoteric oxide (Al2O3). The remaining compounds are not oxides but rather binary compounds or acids.