Question

SO2 → H2SO3 → Na2SO3 → BaSO3

Answer 1

Ответ:

SO2+H2O=H2SO3

H2SO3+2NaOH=Na2SO3+2H2O

Na2SO3+Ba(OH)2=2NaOH+BaSO3

Объяснение:

Answer 2

The sequence you've provided represents a series of chemical reactions involving sulfur dioxide (SO2) that lead to the formation of barium sulfite (BaSO3) through several intermediate compounds. Here's a breakdown of the reactions:

1. SO2 (Sulfur Dioxide): Sulfur dioxide is a colorless gas with a pungent odor. It is often produced during the combustion of sulfur-containing materials, such as fossil fuels.

2. H2SO3 (Sulfurous Acid): Sulfur dioxide can dissolve in water to form sulfurous acid:

   SO2 + H2O → H2SO3

   Sulfurous acid is a weak acid and is unstable in its pure form. It exists mainly in solution.

3. Na2SO3 (Sodium Sulfite): Sulfurous acid can further react with sodium hydroxide (NaOH) to form sodium sulfite:

   H2SO3 + 2 NaOH → Na2SO3 + 2 H2O

   Sodium sulfite is a white crystalline compound commonly used in various industrial applications, including as a reducing agent.

4. BaSO3 (Barium Sulfite): Finally, sodium sulfite can react with barium chloride (BaCl2) to yield barium sulfite:

   Na2SO3 + BaCl2 → BaSO3 + 2 NaCl

   Barium sulfite is a white solid that is sparingly soluble in water. It is often used in the laboratory for specific applications.

The overall reaction sequence you've mentioned represents a series of chemical transformations involving sulfur dioxide and various other compounds, resulting in the formation of barium sulfite. Each step involves different reactions and intermediates, and the reactions may be carried out under specific conditions such as temperature, pressure, and concentration.