2.4 Types of Chemical Reactions

chemistry

Neutralization

Neutralization reactions occur when an acid and a base react to form a salt and water.

Definition: Neutralization is when an acid (most compounds starting with H) and a base (most compounds ending in OH) react.
    • Acid + base --> salt + water
    • HX + MOH --> MX + H2O where X and M are elements or polyatomic ions
  • Sulphuric acid is used to neutralize calcium hydroxide:
H2SO4+ Ca(OH)2--> CaSO4+ 2H2O
  • Phosphoric acid helps to neutralize the compounds that cause rust, such as iron (II) hydroxide.
H3PO4+ 3Fe(OH)2--> Fe3(PO4)2+ 6H2O


Watch this video on neutralization reactions.