My watch list
my.chemeurope.com

# Effervescence

Look up effervescence in Wiktionary, the free dictionary.

Effervescence is the escape of gas from an aqueous solution. The term is used to describe the foaming or fizzing that results from a release of gas. In the lab, a common example of effervescence is the addition of hydrochloric acid to a block of limestone. If a few pieces of marble or an antacid tablet are put in hydrochloric acid in a test tube fitted with a cork, effervescence of carbon dioxide can be witnessed.

$\mbox{H}_2\mbox{CO}_3 \longrightarrow \mbox{H}_2\mbox{O} + \mbox{CO}_2$