Question

(11) Sodium hydroxide solution (in water) react with
acid solution (in water) to produce sodium chloride solution
water.
2
NON
1 (in water) reacts with hydrochloric
produce sodium chloride solution and​

Answer 1

• The reaction between an acid and a base is known as a neutralisation reaction. Often when an acid and base react a salt and water will be formed. We will look at a few examples of acid-base reactions.

• Hydrochloric acid reacts with sodium hydroxide to form sodium chloride (a salt) and water. Sodium chloride is made up of Na+ cations from the base (NaOH) and Cl− anions from the acid (HCl).

HCl (aq)+NaOH (aq)→H2O (l)+NaCl (aq)

• Hydrogen bromide reacts with potassium hydroxide to form potassium bromide (a salt) and water. Potassium bromide is made up of K+ cations from the base (KOH) and Br− anions from the acid (HBr).

HBr (aq)+KOH (aq)→H2O (l)+KBr (aq)

• Hydrochloric acid reacts with ammonia to form ammonium chloride (a salt). Ammonium chloride is made up of NH+4 cations from the base (NH3) and Cl− anions from the acid (HCl).

HCl (aq)+NH3(aq)→NH4Cl (aq)