Welcome to the module on Gases.

At the end of this module you should be able to:
1. Carry out the characteristic tests for oxygen, carbon dioxide and hydrogen gases. 
2. Identify some of the properties of carbon dioxide. 
3. Explain combustion and the Fire Triangle. 
4. Compare/contrast combustion, respiration, photosynthesis as chemical reactions. 
5. Understand the atmosphere is a mixture of gases in a number of layers. 
6. Understand the Law of Conservation of Mass through the production and identification of a gas. 
7. Understand the role of carbon dioxide in photosynthesis and extinguishing fire.