The three states of matter can be represented by the particle model. This model explains the properties of substances in their different states, as well as changes of state. Changes of state: ...
Students learn to describe and explain the process of forming a solution. Solutions: A Special Type of Mixture: Students learn to describe and explain the process of forming a solution using the terms ...
The word 'pure' is used in chemistry in a different way from its everyday meaning. For example, shops sell cartons labelled as 'pure' orange juice. The label means that the contents are just orange ...
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