Write the reaction equation: Zinc sulfide – zinc oxide – zinc – zinc nitrate – zinc oxide

| April 11, 2021 | education

Write the reaction equation: Zinc sulfide – zinc oxide – zinc – zinc nitrate – zinc oxide – sodium zincate – zinc sulfate – zinc sulfide – zinc chloride

1. Let’s compose the equation of the reaction of combustion of zinc sulfide. Zinc and sulfur oxides are formed.

ZnS + O2 = ZnO + SO2.

2. Zinc oxide can be obtained from zinc oxide by its reduction with hydrogen, carbon, aluminum, carbon monoxide.

ZnO + H2 = Zn + H2O.

3. Nitric acid reacts in a special way with metals (hydrogen is not formed, nitrogen oxides or other products are obtained).

Zn + 4HNO3 = Zn (NO3) 2 + 2NO2 + 2H2O.

4.Nitric acid salts have a tendency to decompose when heated. Let’s compose the equation for the decomposition of zinc nitrate. The reaction products are zinc oxide, oxygen, nitric oxide (IV).

2Zn (NO3) 2 = 2ZnO + 4NO2 + O2.

5. Zinc oxide is an amphoteric oxide that can react with alkalis to form salts. The reaction products between zinc oxide and alkali are sodium zincate and water.

ZnO + 2NaOH = Na2ZnO2 + H2O.

Na2ZnO2 + 2H2SO4 = Na2SO4 + ZnSO4 + 2H2O.

ZnSO4 + Na2S = ZnS + Na2SO4.

ZnS + 2HCl = ZnCl2 + H2S.



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