Question

Установите соответствие между химической формулой и типом гидролиза соли. 1) KCL 2) CaCO3 3) ZnCl2 4) Na2CO3 5) (NH4)2CO3 A) по катиону B) по аниону C) по катиону и аниону D) гидролиз не идет

Answer 1

1D;2B;3A;4B;5C
Видел уже где-то подобный вопрос)

Answer 2

Matching Chemical Formulas with Types of Salt Hydrolysis

1. KCl - Type of Hydrolysis: No hydrolysis occurs - Explanation: Potassium chloride (KCl) is a salt formed from the reaction between a strong acid (HCl) and a strong base (KOH). Since both the cation (K+) and the anion (Cl-) come from strong electrolytes, they do not undergo hydrolysis in water.

2. CaCO3 - Type of Hydrolysis: No hydrolysis occurs - Explanation: Calcium carbonate (CaCO3) is a salt that does not undergo hydrolysis in water. It is formed from a strong base (Ca(OH)2) and a weak acid (H2CO3), but the resulting salt does not hydrolyze significantly in water.

3. ZnCl2 - Type of Hydrolysis: Hydrolysis occurs both by the cation and the anion - Explanation: Zinc chloride (ZnCl2) is a salt that undergoes hydrolysis both by the cation (Zn2+) and the anion (Cl-) in water. The hydrolysis of the cation results in an acidic solution, while the hydrolysis of the anion results in a basic solution.

4. Na2CO3 - Type of Hydrolysis: Hydrolysis occurs both by the cation and the anion - Explanation: Sodium carbonate (Na2CO3) is a salt that undergoes hydrolysis both by the cation (Na+) and the anion (CO3^2-) in water. The hydrolysis of the cation results in a basic solution, while the hydrolysis of the anion results in a basic solution as well.

5. (NH4)2CO3 - Type of Hydrolysis: Hydrolysis occurs both by the cation and the anion - Explanation: Ammonium carbonate ((NH4)2CO3) is a salt that undergoes hydrolysis both by the cation (NH4+) and the anion (CO3^2-) in water. The hydrolysis of the cation results in an acidic solution, while the hydrolysis of the anion results in a basic solution.

In summary, the types of hydrolysis for the given chemical formulas are as follows: - KCl: No hydrolysis occurs - CaCO3: No hydrolysis occurs - ZnCl2: Hydrolysis occurs both by the cation and the anion - Na2CO3: Hydrolysis occurs both by the cation and the anion - (NH4)2CO3: Hydrolysis occurs both by the cation and the anion