Neutralisation
Definition

Neutralisation is a chemical reaction between a base and
an acid to form salt and water.

Neutralisation reactions are exothermic.
𝐴𝑐𝑖𝑑 + 𝐵𝑎𝑠𝑒 → 𝑆𝑎𝑙𝑡 + 𝑊𝑎𝑡𝑒𝑟
e.g.
Both the acid and alkali are aqueous solutions.
 Remember to write the state when you write
the equation

 Acid
(aq)
 Alkali
(aq)
General Word Equation
Acid(aq) + Alkali(aq)  Salt(aq) + Water(l)
Examples:
Sulfuric Acid + Potassium Hydroxide  Potassium Sulfate + Water
H₂SO₄ + 2KOH  K₂SO₄ + 2H₂O
Hydrochloric Acid + Ammonium Hydroxide  Ammonium Chloride + Water
HCl + NH₄OH 
NH₄Cl + H₂O
Write Word Equation
1.
Hydrochloric Acid and Potassium Hydroxide
2.
Sulfuric Acid and Calcium Hydroxide
3.
Sulfuric Acid and Sodium Hydroxide
4.
Nitric Acid and Barium Hydroxide
5.
Hydrochloric Acid and Magnesium Hydroxide
Write Symbol Equation

1.
2.
3.
4.
5.
For the previous 5 equations, write the symbol equations.
Answers
1.
Hydrochloric Acid and Potassium Hydroxide
HCl + KOH  H₂O + KCl
2.
Sulfuric Acid and Calcium Hydroxide
H₂SO₄ + Ca(OH)₂  2H₂O + CaSO₄
3.
Sulfuric Acid and Sodium Hydroxide
H₂SO₄ + 2NaOH  2H₂O + Na₂SO₄
4.
Nitric Acid and Barium Hydroxide
2HNO₃ + Ba(OH)₂  2H₂O + Ba(NO₃)₂
5.
Hydrochloric Acid and Magnesium Hydroxide
2HCl + Mg(OH)₂  2H₂O + MgCl₂