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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Oxides

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Oxides

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Paper 3Theory (Core)4 marks

Understanding the reactions of oxides.

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Reactions of Oxides

Acidic oxides react with bases, while basic oxides react with acids.

  1. a

    Compare the reactions of acidic oxides and basic oxides.

    Aim for approximately 4 distinct marking points.

    [4]

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Paper 3 structured question: Oxides

Paper 3Theory (Core)2 marks

Description

Classification of Oxides

Oxides can be classified into acidic and basic oxides based on their chemical properties.

  1. a

    Define acidic oxides and give two examples.

    Aim for approximately 2 distinct marking points.

    [2]