Making sodium, potassium and ammonium salts

2 marks · Normal

Write the balanced chemical equation for preparing sodium chloride from sodium hydroxide and hydrochloric acid. Name the type of reaction that takes place.

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NaOH(aq) + HCl(aq) -> NaCl(aq) + H2O(l); neutralisation

Also accept: NaOH(aq) + HCl(aq) → NaCl(aq) + H2O(l); neutralisation

Common mistakes: Wrong formula for sodium chloride

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Marking points

B1 · 1 mark · Correct balanced equation: NaOH(aq) + HCl(aq) -> NaCl(aq) + H2O(l)

B2 · 1 mark · Identifies this as a neutralisation reaction.

Worked solution

This is a neutralisation reaction as an alkali reacts with an acid to form a salt and water.