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8.2.2 Test for oxygen
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The oxygen test

The oxygen test

A chemistry test showing a glowing splint lowered into a gas sample and relighting in oxygen

Oxygen is the gas that makes up approximately 20%20\%20% of Earth's atmosphere. It supports combustion, meaning it helps substances burn.

8.2.2 Test for oxygen Lesson

  1. GCSE
  2. /Chemistry
  3. /8.2.2 Test for oxygen

Step-by-step lessons covering AQA GCSE Chemistry 8.2.2 Test for oxygen for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.