What does a chemical formula show?
The elements in a substance and the relative numbers of their atoms, using element symbols and subscripts.
Cambridge IGCSE (9–1) Chemistry 0971 (Extended) (2026–2028) · 3.1
Revise Cambridge IGCSE (9–1) Chemistry 0971 (Extended) (2026–2028) specification point 3.1, Formulae, with free active-recall flashcards. Flip through the set or review every question and answer below.
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What does a chemical formula show?
The elements in a substance and the relative numbers of their atoms, using element symbols and subscripts.
What does a molecular formula show?
The type and number of each atom in one molecule.
How can you deduce the formula of a simple compound from a model or diagram?
Identify the different atoms and their relative numbers, then use the corresponding element symbols and subscripts.