CAIE IGCSE Chemistry 3.1.1 Formulae of the elements & compounds

Practise recalling and applying formulae for named elements and compounds in familiar reactions, tests and salt preparations.

Exam points

choose correct compound formulae from ion names, including brackets for polyatomic ions

[Maximum number: 1]

The Haber process is used to manufacture ammonia.

Ammonia reacts with an acid to form ammonium sulfate, $\left(\mathrm{NH}_{4}\right)_{2} \mathrm{SO}_{4}$ .

State the formula of the acid used.

$\mathrm{H}_{2}\mathrm{SO}_{4}$ }

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