The chemical equation K2CO3 + HCl -> 2KCl + H2O + CO2

Detailed information about the equation K₂CO₃ + HCl -> 2KCl + H₂O + CO₂:
This chemical equation represents the neutralization reaction between the alkali salt K₂CO₃ (potassium carbonate) and the strong acid HCl (hydrochloric acid), resulting in the salt KCl (potassium chloride), water and CO₂ gas (carbon dioxide).

Reaction conditions:
The reaction occurs at room temperature and does not require the presence of a catalyst.

Reaction process:
First, the mixture of K₂CO₃ and HCl is mixed together. Potassium carbonate reacts with hydrochloric acid to form potassium chloride, water and carbon dioxide gas. The reaction is exothermic and continues until one of the reactants is exhausted.

Phenomenon occurring:
When the reaction occurs, a phenomenon of CO₂ gas bubbles will appear. This is a sign that the neutralization reaction is taking place. If using a pH indicator to track, the color of the indicator will change from blue to red because the alkali salt K₂CO₃ has completely reacted with the acid HCl.