You will be adding a solution containing potassium carbonate to a solution containing hydrochloric acid. What risk is associated with this?

The reaction of potassium carbonate with hydrochloric acid is as follow -

Potassium Carbonate + Hydrochloric acid → Potassium Chloride + Water + Carbon Dioxide.

In the above reaction, the metal carbonate reacts with an acid to give salt, water and carbon dioxide.

The reaction is an exothermic reaction, as the release of carbon dioxide, is indicated by vigorous effervescence.

Hence,

The temperature of the reaction increases a lot and hence the reaction is very dangerous.

Therefore, the reaction is very risky to perform.