Interaction of acid with metals: 1. Concentrated sulfuric cold 2. Concentrated sulfuric hot

| June 10, 2021 | education

Interaction of acid with metals: 1. Concentrated sulfuric cold 2. Concentrated sulfuric hot 3. Sulfuric diluted 4. Nitrogen concentrated cold 5. Nitric concentrated hot 6. Nitric diluted

Consider the reaction of interaction of metals with sulfuric acid.

1. Chemical reaction of metals with hot sulfuric acid.

Cu + 2H2SO4 = CuSO4 + 2H2O + SO2.

As a result of this reaction, sulfur oxide gas is evolved.

2. Interaction with cold sulfuric acid.

In the cold in concentrated sulfuric acid, the following metals are passivated: Fe, AL, Cr, Co, Ni, Ba.

3. Interaction with dilute sulfuric acid.

Fe + H2SO4 = FeSO4 + H2.

As a result, hydrogen is released.

4. Interaction with concentrated nitric acid.

Cu + 4HNO3 = Cu (NO3) 2 + 2NO2 + 2H2O.

As a result, NO2 gas is released.

5. Interaction with dilute nitrogen.

3Cu + 8HNO3 = 3Cu (NO3) 2 + 2NO + 4H20.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.