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Cambridge IGCSE Chemistry practice

Paper 3 structured question: Formulae

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3

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1

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Formulae

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Paper 3Theory (Core)1 marks

Understanding chemical formulas is crucial for chemical reactions.

Description

Chemical Formulas

Chemical formulas provide information about the elements in a compound and their ratios. For example, NaCl indicates sodium and chlorine in a 1:1 ratio.

  1. a

    State the chemical formula for magnesium oxide.

    Aim for approximately 1 distinct marking point.

    [1]

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Paper 3 structured question: Formulae

Paper 3Theory (Core)1 marks

Description

Chemical Formulas

Chemical formulas indicate the composition of elements and compounds. For example, H2O represents water, while CO2 represents carbon dioxide.

  1. a

    State the chemical formula for carbon tetrachloride.

    Aim for approximately 1 distinct marking point.

    [1]