Neutralisation

Neutralisation happens when an acid and a base reactant cancel each other out to either form salt and water. Neutralisation also happens because of the Hydrogen ions and Hydroxide ions react to form H2O molecules. A salt is a chemical substance formed in an acid-base reaction (not always table salt).
Chemical formula:
HCl+NaOH --> NaCl+H2O
Acid+Base --> Salt+Water