Tests for gases and water, Cambridge chemistry iGCSE

Notes on the tests for gases and for water for Cambridge chemistry iGCSE on one page. The notes include an explanation of what the tests tell you about the properties of each chemical and links to recommended videos. Versions both in colour and in black and white for photocopying. Gases covered are tests for hydrogen, oxygen, chlorine, ammonia, sulfur dioxide and carbon dioxide. The reaction of ammonia with hydrogen chloride is also covered.