Question

what are antacids and how do they work?????

Answer 1

the substances which contract acidity are known as antacids
they work by neutralization reaction as it is a base and counteract acidity with formation of salt and water

Answer 2

Antacids are powdered form of basic substances.
During acidity we consume antacid for relief.
Antacids react with Hydrochloric acid present in our stomach and nuetralizes it for relief. This process is called neutralization reaction.

Hope this helps you!