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4.2 Reactions of acids

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Question 25

A laboratory needs to prepare calcium chloride, CaCl2\text{CaCl}_2CaCl2​, using one of the reactions in the table.

The reaction chosen must not produce a gas.

ReactionSubstance 1Substance 2
Acalcium oxidedilute nitric acid
Bcalcium carbonatedilute hydrochloric acid
Ccalcium oxidedilute hydrochloric acid
Dmagnesium oxidedilute hydrochloric acid

Which reaction should the laboratory use?

Explain your answer.

[4]
Markscheme

4.2 Reactions of acids Questions

  1. GCSE
  2. /Chemistry
  3. /4.2 Reactions of acids

88 exam-style questions on AQA GCSE Chemistry 4.2 Reactions of acids, covering 4.2.1a Reactions of acids with metals, 4.2.1b Redox in acid-metal reactions, 4.2.2 Neutralisation of acids and salt production, 4.2.3 Soluble salts, 4.2.4 The pH scale and neutralisation, 4.2.5a Titrations, 4.2.5b Calculating quantities in titrations, and 4.2.6 Strong and weak acids. Each one has a worked solution and a mark scheme showing where the marks go.

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