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Cambridge IGCSE Combined Science practice

Paper 3 structured question: Preparation of salts

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Preparation of salts

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Paper 3Theory (Core)3 marks

Preparation of soluble salts from acids.

Description

Preparation of Soluble Salts

Describe the process of preparing a soluble salt from an acid using an alkali, including purification steps.

  1. a

    Describe the process of preparing a soluble salt from an acid using an alkali.

    Aim for approximately 3 distinct marking points.

    [3]

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Paper 3 structured question: Preparation of salts

Paper 3Theory (Core)4 marks

Description

Preparation of Soluble Salts

Explain how to prepare a soluble salt from an acid using an excess of an insoluble base.

  1. a

    Explain how to prepare a soluble salt from an acid using an excess of an insoluble base.

    Aim for approximately 4 distinct marking points.

    [4]