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8.2 Identification of common gases

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Question 5

A student collects a sample of an unknown gas, X, in a test tube. Gas X burns in air as shown by the equation.

2X+O2→2H2O2\text{X} + \text{O}_2 \rightarrow 2\text{H}_2\text{O}2X+O2​→2H2​O

Use the equation to identify gas X. Explain how the student should use a burning splint to show that the gas is X, and why the result occurs.

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8.2 Identification of common gases Questions

  1. GCSE
  2. /Chemistry
  3. /8.2 Identification of common gases

89 exam-style questions on AQA GCSE Chemistry 8.2 Identification of common gases, covering 8.2.1 Test for hydrogen, 8.2.2 Test for oxygen, 8.2.3 Test for carbon dioxide, and 8.2.4 Test for chlorine. Each one has a worked solution and a mark scheme showing where the marks go.

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