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4.2 Reactions of acids

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Question 20

A laboratory analyses a cleaning powder. The powder contains either sodium hydroxide or sodium carbonate.

The results of two tests are shown in the table.

TestObservation
Add dilute nitric acid to the powderA colourless gas is produced
Bubble the gas through limewaterThe limewater turns milky

Explain which compound is in the powder and identify all the products formed when the powder reacts with nitric acid.

[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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