Chemistry (5070) Topic 9 · Metals 9.3 Alloys and their properties Practise alloy composition, particle structure, why alloys are harder and stronger than pure metals, and why stainless steel is suitable for cutlery. Key TheoryLearn FirstLoading… Common MistakesAvoid TheseLoading… StrategyApply ThisLoading… Practice 1EasyLoading… Practice 2MediumLoading… Practice 3AdvancedLoading…