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1.1 Formulae, equations and hazards

1.1 Formulae, equations and hazards

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Question 23

Explain one safety precaution that should be taken when preparing a sample of nitrogen dioxide gas in the laboratory.

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Markscheme

1.1 Formulae, equations and hazards Questions

  1. GCSE
  2. /Chemistry
  3. /1.1 Formulae, equations and hazards

230 exam-style questions on Edexcel GCSE Chemistry 1.1 Formulae, equations and hazards, covering 1.1.1 Formulae, word and balanced equations, 1.1.2 Balanced ionic equations, and 1.1.3 Hazard symbols and risk in practical work. Each one has a worked solution and a mark scheme showing where the marks go.

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