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Formulae
Identify the chemical formulas for the elements and compounds listed in the syllabus.
8
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80
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56
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90 min
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CambridgeIGCSEChemistrySubject content
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8 objective pages available
Formulae outcomes8 objectives
- Identify the chemical formulas for the elements and compounds listed in the syllabus.
- Explain that the molecular formula of a compound indicates the quantity and types of different atoms in a single molecule.
- Determine the formula of a simple compound based on the relative quantities of atoms shown in a model or diagram.
- Create word and symbol equations to illustrate how reactants transform into products, including their physical states.
- Define the empirical formula of a compound as the simplest ratio of different atoms or ions present in it.
- Determine the formula of an ionic compound based on the relative quantities of ions shown in a model or diagram, or from their charges.
- Create symbol equations with state symbols, including those for ionic reactions.
- Determine the symbol equation with state symbols for a chemical reaction using the provided information.
Key terms
StateDefineDetermineDistinguishConstructDraw
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