Question

Zn➡️ZnSO4➡️Zn(OH)2➡️Na2ZnO2➡️ZnCO3➡️ZnO

Answer 1

Ответ:

1) Zn + H2SO4(разб.) = ZnSO4 + H2

2) ZnSO4 + 2NaOH = Zn(OH)2 + Na2SO4

3) Zn(OH)2 = ZnO + H2O

ZnO + Na2O = Na2ZnO2

4) Na2ZnO2 + 4HCl = ZnCl2 + 2NaCl + 2H2O

ZnCl2 + Na2CO3 = ZnCO3 + 2NaCl

5) ZnCO3 = ZnO + CO2

Answer 2

The series of chemical reactions you've provided seems to describe a sequence of transformations involving zinc (Zn). Let's break down each step:

1. Zn ➡️ ZnSO4: This represents the oxidation of elemental zinc (Zn) to zinc sulfate (ZnSO4) by reacting with sulfuric acid (H2SO4) or another suitable oxidizing agent.

2. ZnSO4 ➡️ Zn(OH)2: This step indicates the precipitation of zinc hydroxide (Zn(OH)2) from zinc sulfate (ZnSO4) by adding a base, typically sodium hydroxide (NaOH) or another strong base.

3. Zn(OH)2 ➡️ Na2ZnO2: This reaction suggests the formation of sodium zincate (Na2ZnO2) from zinc hydroxide (Zn(OH)2) by the reaction with sodium hydroxide (NaOH).

4. Na2ZnO2 ➡️ ZnCO3: In this step, sodium zincate (Na2ZnO2) reacts with carbon dioxide (CO2) to form zinc carbonate (ZnCO3).

5. ZnCO3 ➡️ ZnO: Finally, zinc carbonate (ZnCO3) decomposes to produce zinc oxide (ZnO) and carbon dioxide (CO2).

These reactions describe a series of chemical transformations of zinc, starting from its elemental form and ending with the formation of zinc oxide (ZnO). Each step involves different reactants and conditions to facilitate the conversion of one compound into another. These reactions are typically carried out in a laboratory or industrial setting for specific purposes, such as the preparation of different zinc compounds for various applications.