Question

показать с помощью структурных формул валентность элементов в соединениях HNO3 AL2O3 NaHSO4 Cu(OH)2

Answer 1

  Решение с кратким объяснением  во вложениях))

Answer 2

Valency of Elements in Compounds

Let's examine the valency of the elements in the compounds HNO3, Al2O3, NaHSO4, and Cu(OH)2.

- HNO3: - Hydrogen (H) typically has a valency of +1. - Nitrogen (N) typically has a valency of -3 to +5. - Oxygen (O) typically has a valency of -2. - In HNO3, nitrogen has a valency of +5, and oxygen has a valency of -2.

- Al2O3: - Aluminum (Al) typically has a valency of +3. - Oxygen (O) typically has a valency of -2. - In Al2O3, aluminum has a valency of +3, and oxygen has a valency of -2.

- NaHSO4: - Sodium (Na) typically has a valency of +1. - Hydrogen (H) typically has a valency of +1. - Sulfur (S) typically has a valency of -2 to +6. - Oxygen (O) typically has a valency of -2. - In NaHSO4, sulfur has a valency of +6, and oxygen has a valency of -2.

- Cu(OH)2: - Copper (Cu) typically has a valency of +1 or +2. - Oxygen (O) typically has a valency of -2. - Hydrogen (H) typically has a valency of +1. - In Cu(OH)2, copper has a valency of +2, oxygen has a valency of -2, and hydrogen has a valency of +1.

These valencies determine the combining power of the elements in the compounds.