Topic 2 – States of matter and mixtures SPECIFICATION

States of matter 

2.1 Describe the arrangement, movement and the relative energy of particles in each of the three states of matter: solid, liquid and gas 

2.2 Recall the names used for the interconversions between the three states of matter, recognising that these are physical changes: contrasted with chemical reactions that result in chemical changes 

2.3 Explain the changes in arrangement, movement and energy of particles during these interconversions 

2.4 Predict the physical state of a substance under specified conditions, given suitable data 

Methods of separating and purifying substances 

2.5 Explain the difference between the use of ‘pure’ in chemistry compared with its everyday use and the differences in chemistry between a pure substance and a mixture 

2.6 Interpret melting point data to…