The series of chemical reactions starting with zinc ZnZnZn and ending with zinc chloride ZnCl2ZnCl2ZnCl2 involves the following steps:
Zinc reacts with oxygen in the air to form zinc oxide ZnOZnOZnO:Zn + O2 → ZnO
Zinc oxide reacts with nitric acid HNO3HNO3HNO3 to form zinc nitrate Zn(NO3)2Zn(NO3)2Zn(NO3)2:ZnO + 2HNO3 → ZnNO3NO3NO32 + H2O
Zinc nitrate reacts with sodium hydroxide NaOHNaOHNaOH to form zinc hydroxide Zn(OH)2Zn(OH)2Zn(OH)2:ZnNO3NO3NO32 + 2NaOH → ZnOHOHOH2 + 2NaNO3
Zinc hydroxide reacts with hydrochloric acid HClHClHCl to form zinc chloride ZnCl2ZnCl2ZnCl2:ZnOHOHOH2 + 2HCl → ZnCl2 + 2H2O
So, the overall reaction pathway is:Zn → ZnO → ZnNO3NO3NO32 → ZnOHOHOH2 → ZnCl2
The series of chemical reactions starting with zinc ZnZnZn and ending with zinc chloride ZnCl2ZnCl2ZnCl2 involves the following steps:
Zinc reacts with oxygen in the air to form zinc oxide ZnOZnOZnO:
Zn + O2 → ZnO
Zinc oxide reacts with nitric acid HNO3HNO3HNO3 to form zinc nitrate Zn(NO3)2Zn(NO3)2Zn(NO3)2:
ZnO + 2HNO3 → ZnNO3NO3NO32 + H2O
Zinc nitrate reacts with sodium hydroxide NaOHNaOHNaOH to form zinc hydroxide Zn(OH)2Zn(OH)2Zn(OH)2:
ZnNO3NO3NO32 + 2NaOH → ZnOHOHOH2 + 2NaNO3
Zinc hydroxide reacts with hydrochloric acid HClHClHCl to form zinc chloride ZnCl2ZnCl2ZnCl2:
ZnOHOHOH2 + 2HCl → ZnCl2 + 2H2O
So, the overall reaction pathway is:
Zn → ZnO → ZnNO3NO3NO32 → ZnOHOHOH2 → ZnCl2