topic 4 + 6 + 7: States of Matter + Electrochemistry + Equilibria

4.1.1 explain the origin of pressure in a gas in terms of collisions between gas molecules and the wall of the container

6.1.4 explain and use the terms oxidising agent and reducing agent

7.1.10 describe and explain the conditions used in the Haber process and the Contact process, as examples of the importance of an understanding of dynamic equilibrium in the chemical industry and the application of Le Chatelier’s principle

7.2.6 explain qualitatively the differences in behaviour between strong and weak acids including the reaction with a reactive metal and difference in pH values by use of a pH meter, universal indicator or conductivity