The equation K2CO3 + SiO2 -> 2K2SiO3 + 2CO2

The chemical equation above describes the reaction between potassium carbonate (K₂CO₃) and silicon dioxide (SiO₂) to produce potassium silicate (K₂SiO₃) and carbon dioxide gas (CO₂).

Reaction Conditions: This reaction requires high temperature as a catalyst to promote the reaction.

Reaction Process: In this process, one molecule of potassium carbonate and one molecule of silicon dioxide react with each other under high temperature conditions to produce two molecules of potassium silicate and two molecules of carbon dioxide gas.

Phenomenon Occurs: When the reaction takes place, you will notice the release of carbon dioxide gas. This gas can be identified by its characteristics, as it’s colorless, odorless and when it comes into contact with limewater it forms a lime precipitate. The reaction also produces potassium silicate – a solid that is insoluble in water.