Question

ZnS->Zn0->ZnSO4->ZnOH2->ZnO->ZnCl2 как решить помогите

Answer 1

2ZnS+3O2=2ZnO+2So2
ZnO+H2SO4=ZnSO4+H2O
ZnSO4+2NaOH=Zn(OH)2+Na2SO4
Zn(OH)2=ZnO+H2O
ZnO+2HCl=ZnCl2+H2O

Answer 2

Chemical Reaction Steps

The chemical reaction steps from ZnS to ZnCl2 involve several intermediate reactions. Here's a detailed breakdown of each step:

1. ZnS to ZnO: The first step involves the oxidation of ZnS to ZnO. This can be represented by the following chemical equation: ``` ZnS + 3/2 O2 → ZnO + SO2 ``` This reaction involves the conversion of zinc sulfide to zinc oxide in the presence of oxygen [[1]].

2. ZnO to ZnSO4: The next step is the conversion of ZnO to ZnSO4. This can be achieved through a reaction with sulfuric acid: ``` ZnO + H2SO4 → ZnSO4 + H2O ``` This reaction results in the formation of zinc sulfate from zinc oxide and sulfuric acid [[2]].

3. ZnSO4 to Zn(OH)2: The next step involves the precipitation of zinc hydroxide from zinc sulfate solution by adding a base, typically sodium hydroxide: ``` ZnSO4 + 2NaOH → Zn(OH)2 + Na2SO4 ``` This reaction results in the formation of zinc hydroxide as a precipitate [[3]].

4. Zn(OH)2 to ZnO: Zinc hydroxide can then be dehydrated to form zinc oxide: ``` Zn(OH)2 → ZnO + H2O ``` This reaction involves the removal of water from zinc hydroxide to yield zinc oxide [[4]].

5. ZnO to ZnCl2: Finally, zinc oxide can react with hydrochloric acid to form zinc chloride: ``` ZnO + 2HCl → ZnCl2 + H2O ``` This reaction results in the formation of zinc chloride from zinc oxide and hydrochloric acid [[5]].

Conclusion

By following these sequential reactions, it is possible to convert ZnS to ZnCl2 through a series of chemical transformations involving oxidation, acid-base reactions, and dehydration. Each step contributes to the overall conversion process, leading to the formation of zinc chloride from zinc sulfide.