Question

Дана схема превращений:H2SO4 --> H2S (+O2) --> X --> Na2SO3 Напишите молекулярные уравнения реакций, с помощью которых можно осуществить указанные превращения

Answer 1

H2SO4+FeS=FeSO4+H2S

H2S = H2 + S

S + O2 = SO2 
SO2 + 2NaOH= Na2SO3 + H2O

Answer 2

Molecular Equations for the Given Transformations

To achieve the given transformations in the scheme, we can use the following molecular equations:

1. H2SO4 -> H2S + O2 2. H2S + O2 -> X 3. X -> Na2SO3

Let's break down each equation and explain the reactions involved.

1. H2SO4 -> H2S + O2

In this reaction, sulfuric acid (H2SO4) is decomposed into hydrogen sulfide (H2S) and oxygen (O2). The balanced equation for this reaction is:

H2SO4 -> H2S + O2

2. H2S + O2 -> X

In this step, hydrogen sulfide (H2S) reacts with oxygen (O2) to form a compound represented by 'X'. The balanced equation for this reaction is not provided in the search results.

3. X -> Na2SO3

In the final step, the compound 'X' undergoes a reaction to form sodium sulfite (Na2SO3). The balanced equation for this reaction is not provided in the search results.

Unfortunately, the search results do not provide the balanced equations for the second and third steps of the transformation scheme. Therefore, we are unable to provide the complete molecular equations for those reactions.

Please note that the information provided is based on the search results available at the time of generating this response.