This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
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Here is the solution to question 8: 8. a) Classify the following as ferrous or non-ferrous metals: steel, aluminium, copper, cast iron. Ferrous metals* are those that contain iron. Non-ferrous metals* are those that do not contain iron. Steel: Ferrous* (an alloy of iron and carbon). Aluminium: Non-ferrous* (a pure metal, no iron). Copper: Non-ferrous* (a pure metal, no iron). Cast iron: Ferrous* (an alloy of iron, carbon, and silicon). 8. b) Explain two properties that make aluminium suitable for engine components. Lightweight: Aluminium has a low density*, making it significantly lighter than steel. This reduces the overall weight of the engine and vehicle, leading to improved fuel efficiency and better performance. Good Thermal Conductivity: Aluminium is an excellent conductor of heat. This property allows engine components made from aluminium to dissipate heat efficiently*, preventing overheating and maintaining optimal operating temperatures.