What term describes the visible bubbling or fizzing that occurs when a gas is released from a liquid, such as when an antacid tablet dissolves in water?

Explanation

Effervescence describes the visible escape of gas bubbles from within a liquid, commonly observed when a carbonated drink is opened or when an effervescent antacid tablet dissolves in water, releasing carbon dioxide gas produced by a chemical reaction inside the liquid. This bubbling occurs because the gas is less soluble than the surrounding liquid conditions allow, causing it to escape as visible bubbles rather than remaining dissolved. Many over-the-counter medications are formulated as effervescent tablets partly because the fizzing process can help them dissolve and become active more quickly. Explore more Everyday Science MCQs on mcqstutor to keep practicing.