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Chemistry Paper 1: C2 (Materials (Metals are extracted from rocks, Alloys…
Chemistry Paper 1: C2
Materials
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Concrete is not very strong, but can be reinforced with steel
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Aluminium is a metal with a low density, which does not corrode because it has a protective oxide layer
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Salts
Sodium chloride is an important raw material which obtained by mining it from the ground or by solution mining
Electrolysis is used to split sodium chloride solution into hydrogen, Chlorine and sodium hydroxide
Acids react with metal oxides, hydroxides and carbonates to make salts
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