Question

5. Какая из приведенных реакций практически осуществима? CuSO4 + HNO3—>, Cu + HCl —>, Hg + H2SO4 →, BaCl2 + H2SO4 —>, NaOH + H2SO4 —>, MgCI2 + H2SO4 →, Na2SO3 + H2SO4—>, NaNO3 + HCI—>. помогите пожалуйста срочно!!!!!​

Answer 1

Ответ:

Объяснение:

BaCl2 + H2SO4 = BaSO4 + 2HCl (BaSO4 - выпадает в осадок)

2NaOH + H2SO4 = Na2SO4 + H2O (реакция нейтрализации)

Все остальные реакции либо не идут, либо идут в обе стороны

Answer 2

Practical Reactivity of Chemical Reactions

When considering the practical feasibility of chemical reactions, it's important to assess the reactivity of the substances involved. Let's analyze the given reactions to determine which one is practically feasible.

1. CuSO4 + HNO3 → - This reaction involves copper sulfate and nitric acid. It is important to note that copper sulfate is a salt of copper and sulfuric acid, while nitric acid is a strong oxidizing agent. The reaction between copper sulfate and nitric acid is feasible and results in the formation of copper nitrate, nitrogen dioxide, and water. - The reaction can be represented as: ``` CuSO4 + 4HNO3 → Cu(NO3)2 + 2NO2 + 2H2O ``` - This reaction is practically feasible due to the reactivity of nitric acid as a strong oxidizing agent and the ability to displace copper from copper sulfate.

2. Cu + HCl → - This reaction involves copper and hydrochloric acid. Copper does not react with hydrochloric acid under normal conditions. The reaction is not practically feasible as copper is below hydrogen in the reactivity series and does not displace hydrogen from hydrochloric acid.

3. Hg + H2SO4 → - This reaction involves mercury and sulfuric acid. Mercury does not react with sulfuric acid under normal conditions. The reaction is not practically feasible as mercury is relatively inert and does not readily react with sulfuric acid.

4. BaCl2 + H2SO4 → - This reaction involves barium chloride and sulfuric acid. Barium chloride reacts with sulfuric acid to form barium sulfate and hydrochloric acid. - The reaction can be represented as: ``` BaCl2 + H2SO4 → BaSO4 + 2HCl ``` - This reaction is practically feasible due to the formation of an insoluble barium sulfate precipitate and the release of hydrochloric acid.

5. NaOH + H2SO4 → - This reaction involves sodium hydroxide and sulfuric acid. Sodium hydroxide reacts with sulfuric acid to form sodium sulfate and water. - The reaction can be represented as: ``` 2NaOH + H2SO4 → Na2SO4 + 2H2O ``` - This reaction is practically feasible due to the neutralization of the strong base (sodium hydroxide) by the strong acid (sulfuric acid).

6. MgCl2 + H2SO4 → - This reaction involves magnesium chloride and sulfuric acid. Magnesium chloride reacts with sulfuric acid to form magnesium sulfate and hydrochloric acid. - The reaction can be represented as: ``` MgCl2 + H2SO4 → MgSO4 + 2HCl ``` - This reaction is practically feasible due to the formation of magnesium sulfate and the release of hydrochloric acid.

7. Na2SO3 + H2SO4 → - This reaction involves sodium sulfite and sulfuric acid. Sodium sulfite reacts with sulfuric acid to form sodium bisulfate and water. - The reaction can be represented as: ``` Na2SO3 + H2SO4 → NaHSO4 + H2O ``` - This reaction is practically feasible due to the formation of sodium bisulfate and water.

8. NaNO3 + HCl → - This reaction involves sodium nitrate and hydrochloric acid. Sodium nitrate does not react with hydrochloric acid under normal conditions. The reaction is not practically feasible as sodium nitrate is a stable compound and does not readily react with hydrochloric acid.

Based on the reactivity of the substances involved, the following reactions are practically feasible: - CuSO4 + HNO3 → - BaCl2 + H2SO4 → - NaOH + H2SO4 → - MgCl2 + H2SO4 → - Na2SO3 + H2SO4 →

I hope this helps! If you have any more questions or need further assistance, feel free to ask.