Question

Осуществите цепочку превращений : S --> H2S --> SO2 --> Na2SO3 --> SO2

Answer 1

S + H2 = H2S

2H2S + 3O2 = 2SO2 + 2H2O

SO2 + Na2O = Na2SO3

Na2SO3 + 2HcL = 2NaCl + SO2 + H2O

Answer 2

Chain of Transformations: S -> H2S -> SO2 -> Na2SO3 -> SO2

The given chain of transformations involves the conversion of sulfur (S) into sulfur dioxide (SO2) through a series of reactions. Let's break down each step of the transformation:

1. Sulfur (S) to Hydrogen Sulfide (H2S): - The first step is the conversion of sulfur (S) into hydrogen sulfide (H2S). - Hydrogen sulfide is a compound composed of two hydrogen atoms bonded to a sulfur atom. - The reaction can be represented as: S + 2H2 → H2S.

2. Hydrogen Sulfide (H2S) to Sulfur Dioxide (SO2): - The second step involves the conversion of hydrogen sulfide (H2S) into sulfur dioxide (SO2). - Sulfur dioxide is a compound composed of one sulfur atom bonded to two oxygen atoms. - The reaction can be represented as: 2H2S + 3O2 → 2SO2 + 2H2O.

3. Sulfur Dioxide (SO2) to Sodium Sulfite (Na2SO3): - The third step is the conversion of sulfur dioxide (SO2) into sodium sulfite (Na2SO3). - Sodium sulfite is a compound composed of two sodium atoms bonded to a sulfur atom and three oxygen atoms. - The reaction can be represented as: SO2 + Na2O → Na2SO3.

4. Sodium Sulfite (Na2SO3) to Sulfur Dioxide (SO2): - The final step involves the conversion of sodium sulfite (Na2SO3) back into sulfur dioxide (SO2). - The reaction can be represented as: Na2SO3 + H2SO4 → 2SO2 + Na2SO4 + H2O.

Therefore, the complete chain of transformations is as follows: S -> H2S -> SO2 -> Na2SO3 -> SO2.

Please note that the specific conditions and catalysts required for each reaction may vary.