Question

9класс. LiOH → Li2SO3 → SO2 → S → Na2S → SO2 → K2SO31) Составьте уравнения реакций, с помощью которых можно осуществить превращения. 2) Запишите ионные уравнения для реакций с участием не менее 2-х электролитов в ионном виде.

Answer 1

Ответ:

2LiOH+H2SO3=Li2SO3+2H2O

2Li+2OH+2H+SO3=2Li+SO3+2H2O(подписать заряды над элементами) полное ионное

H+OH=H2O сокращённое ионное

Li2SO3+2HCI=2LiCI+SO2+H2O

2Li+SO3+2H+2CI=2Li+2CI+SO2+H2O(подписать заряды над элементами) полное ионное

2H+SO3=SO2+H2O(сокращённое ионное)

SO2+2C=2CO+S

2Na+S=Na2S

2Na2S+4O2(изб)=4Na2O+2SO2

SO2+K2O=K2SO3

Answer 2

Reaction Equations:

To perform the given transformations, we can write the following reaction equations:

1) Lithium hydroxide (LiOH) decomposes to form lithium sulfite (Li2SO3): ``` 2LiOH → Li2SO3 + H2O ```

2) Lithium sulfite (Li2SO3) decomposes to form sulfur dioxide (SO2): ``` Li2SO3 → SO2 + Li2O ```

3) Sulfur dioxide (SO2) reacts with sodium (Na) to form sodium sulfide (Na2S): ``` 2Na + SO2 → Na2S + O2 ```

4) Sodium sulfide (Na2S) reacts with sulfur dioxide (SO2) to form sodium sulfate (Na2SO3): ``` Na2S + SO2 → Na2SO3 ```

5) Sodium sulfate (Na2SO3) reacts with potassium (K) to form potassium sulfate (K2SO3): ``` Na2SO3 + 2K → K2SO3 + Na2 ```

Ionic Equations:

Here are the ionic equations for the reactions involving at least two electrolytes in their ionic form:

1) Lithium hydroxide (LiOH) decomposes to form lithium sulfite (Li2SO3): ``` 2Li+ + 2OH- → Li2SO3 + H2O ```

2) Lithium sulfite (Li2SO3) decomposes to form sulfur dioxide (SO2): ``` Li2SO3 → SO2 + Li2O ```

3) Sulfur dioxide (SO2) reacts with sodium (Na) to form sodium sulfide (Na2S): ``` 2Na+ + SO2 → Na2S + O2 ```

4) Sodium sulfide (Na2S) reacts with sulfur dioxide (SO2) to form sodium sulfate (Na2SO3): ``` Na2S + SO2 → Na2SO3 ```

5) Sodium sulfate (Na2SO3) reacts with potassium (K) to form potassium sulfate (K2SO3): ``` Na2SO3 + 2K+ → K2SO3 + 2Na+ ```

Please note that the above equations are simplified and may not represent the complete reaction mechanisms.