The diagram below shows three different substances, P, Q and R.
2.1 Define the term element. (2)
Use the diagram and the key provided to answer the questions that follow.
2.2 Write down a LETTER that represents the following:
2.2.1 Pure substance (1)
2.2.2 Homogeneous mixture (1)
2.2.3 Heterogeneous mixture (1)
2.3 Indicate whether the pure substance identified in QUESTION 2.2.1 is an
element or a compound. (1)
2.4 Which physical method would you use to separate substance Q into its
components? (1)
2.5 Write down the physical property upon which the separation techniques are
based to separate the following substances into their individual components:
2.5.1 Q (1)
2.5.2 R (1)
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