Write down the equations of possible reactions between substances: ZnO, MgCL2p-p, H2O, KOHp-p, HCLp-p, Li2O.

| June 17, 2021 | education

Write down the equations of possible reactions between substances: ZnO, MgCL2p-p, H2O, KOHp-p, HCLp-p, Li2O. Consider one reaction from the point of view of the theory of electrolytic dissociation.

1) The reaction takes place between zinc oxide and potassium hydroxide and water. A complex salt of potassium hydrozincate is formed.

ZnO + 2 KOH + H2O = K2 [Zn (OH) 4]

2) Zinc oxide reacts with hydrochloric acid. The chemical reaction produces zinc chloride salt and water.

ZnO + 2 HCl = ZnCl2 + H2O

3) Zinc oxide, lithium oxide and water, after passing through a chemical reaction, form a complex salt of lithium hydrozincate.

ZnO + Li2O + 2 H2O = Li2 [Zn (OH) 4]

4) Magnesium chloride salt and potassium hydroxide react to form magnesium hydroxide and potassium chloride salt.

MgCl2 + 2 KOH = Mg (OH) 2 + 2 KCl

Mg 2+ + 2 Cl –  + 2 K + + OH–  = Mg(OH)2 + 2 K + + Cl–

Mg 2+ + 2 OH–  = Mg(OH)2↓

5) Lithium oxide and water form lithium hydroxide as a result of a chemical reaction.

Li2O + H2O = 2 LiOH

6) The reaction takes place between substances such as lithium hydroxide and hydrochloric acid. Formed salt potassium chloride and water.

KOH + HCl = KCl + H2O

7) Hydrochloric acid and lithium oxide chemically form lithium chloride and water.

2 HCl + Li2O = 2 LiCl + H2O.



One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.