The oxygen test
The oxygen test
Oxygen is identified using a glowing splint. Light a wooden splint, blow it out, and use it while the tip is still glowing but no longer burning with a flame.
Step-by-step lessons on Edexcel GCSE Chemistry 9.2.3 Chemical test for oxygen. Each one builds up to exam-style questions. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.