Make the equations: potassium hydroxide, sodium oxide, water, phosphoric acid, carbon monoxide (4)

| August 13, 2021 | education

Potassium hydroxide is a base (alkali) that reacts with acids. We draw up the equation for the reaction between potassium hydroxide and phosphoric acid. Potassium phosphate and water are formed.

6KOH + 2H3PO4 = 2K3PO4 + 6H2O.

Potassium hydroxide reacts with acidic oxides, carbon monoxide, to form potassium carbonate.

2KOH + CO2 = K2CO3.

Sodium oxide – the basic oxide, reacting with water, forms an alkali – sodium hydroxide.

Na2O + H2O = 2NaOH.

Basic oxides react with acids. The reaction between sodium oxide and phosphoric acid produces sodium phosphate and water.

3Na2O + 2H3PO4 = 2Na3PO4 + 3H2O.

The basic oxide and acidic react with each other to form a salt – sodium carbonate.

Na2O + CO2 = Na2CO3.

Acidic oxide, reacting with water, forms the corresponding acid (carbonic).

H2O + CO2 = H2CO3.



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