A neutralisation reaction is a reaction between an acid and a base during which a salt and water is formed. The salt is usually named by using a combination of the base positive ion and an acid negative ion. For example, sodium hydroxide with sulphuric acid would produce sodium sulphate and water. Many neutralisation reactions can be simplified to just H⁺ + OH⁻ → H₂O.

Acids react with some metal oxides and metal hydroxides to produce a salt and water.
CaO + H₂SO₄ → CaSO₄ + H₂O
KOH + HCl → KCl + H₂O

Acids can also be neutralised when reacting with carbonates. Acids, both strong and weak, react with metal carbonates to produce a salt, water and carbon dioxide.
MgCO₃ + 2HCl → MgCl₂ + H₂O + CO₂

Carboxylic acids react with some metal oxides and metal hydroxides to produce a salt and water.
CaO + 2CH₃COOH → (CH₃COO)₂Ca + H₂O
KOH + CH₃COOH → CH₃COOK + H₂O

Carboxylic acids react with metal carbonates to produce a salt, water and carbon dioxide.
MgCO₃ + 2CH₃COOH → (CH₃COO)₂Mg + H₂O + CO₂

Carboxylic acids react with some metal oxides and metal hydroxides to produce a salt and water.

Na₂O + 2CH₃CH₂CH₂COOH → 2CH₃CH₂CH₂COONa + H₂O

Carboxylic acids react with some metal oxides and metal hydroxides to produce a salt and water.

SrO + 2CH₃CH₂CH₂COOH → (CH₃CH₂CH₂COO)₂Sr + H₂O

Many neutralisation reactions can be simplified to just H⁺ + OH⁻ → H₂O.

H⁺, OH⁻

Carboxylic acids react with some metal oxides and metal hydroxides to produce a salt and water. For example, KOH + CH₃COOH → CH₃COOK + H₂O. Therefore, the hydrogen in the carboxylic group is involved in the reaction.

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A neutralisation reaction is a reaction between an acid and a base during which a salt and water is formed.

a reaction between an acid and a base with a salt and water formed