Question

Осуществите цепочку превращений: S ----> SO2 ---> H2SO3 ---> CaSO3

Answer 1

S+o2->so2
so2+h2o->h2so3
h2so3+ca(oh)2->caso3+2h2o

Answer 2

Chain of Transformations: S -> SO2 -> H2SO3 -> CaSO3

To understand the chain of transformations from S to CaSO3, let's break it down step by step:

1. Sulfur (S) to Sulfur Dioxide (SO2): - Sulfur can react with oxygen to form sulfur dioxide. - The balanced chemical equation for this reaction is: S + O2 -> SO2. - Sulfur dioxide is a colorless gas with a pungent odor.

2. Sulfur Dioxide (SO2) to Sulfurous Acid (H2SO3): - Sulfur dioxide can dissolve in water to form sulfurous acid. - The balanced chemical equation for this reaction is: SO2 + H2O -> H2SO3. - Sulfurous acid is a weak acid that can be further oxidized to form sulfuric acid (H2SO4).

3. Sulfurous Acid (H2SO3) to Calcium Sulfite (CaSO3): - Sulfurous acid can react with calcium hydroxide (Ca(OH)2) to form calcium sulfite. - The balanced chemical equation for this reaction is: H2SO3 + Ca(OH)2 -> CaSO3 + 2H2O. - Calcium sulfite is a white solid that is sparingly soluble in water.

So, the complete chain of transformations from S to CaSO3 is as follows: S -> SO2 -> H2SO3 -> CaSO3.

Please note that these transformations are based on chemical reactions and can be carried out under appropriate conditions.