Prove the basic properties of calcium hydroxide by three reactions with different classes of substances.

Let’s prove that calcium hydroxide is a base. This can be proved by carrying out three chemical reactions with sulfuric acid and tetravalent carbon monoxide and with the sodium sulfide salt. All the proposed substances have acidic properties, therefore, if calcium hydroxide enters into chemical interaction with all of them, then its basic properties will be proven.

When interacting with sulfuric acid, a calcium sulfate salt is formed.

Ca (OH) 2 + H2SO4 = CaSO4 + 2 H2O

When interacting with tetravalent carbon monoxide, we get a calcium carbonate salt.

Ca (OH) 2 + CO2 = CaCO3 + H2O

And when interacting with an acidic salt of sodium sulfide, we get a calcium sulfide salt.

Ca (OH) 2 + Na2SO3 = CaSO3 + 2 NaOH.



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.