The table shows some properties of three metals.
| Metal | Density / g cm−3\mathrm{g\,cm^{-3}}gcm−3 | Electrical conductivity | Resistance to corrosion | Cost |
|---|---|---|---|---|
| aluminium | 2.7 | good | good | low |
| copper | 8.9 | very good | good | medium |
| gold | 19.3 | good | very good | very high |
Copper is used for electrical wiring in homes. Give the property from the table that makes copper suitable for this use.
Aluminium, not copper, is used for overhead power cables. Use the table to give two reasons why.
Gold is used to make jewellery. Use the table to give one reason why.
Brass is an alloy of copper and zinc.
State what is meant by an alloy.
Magnalium is another alloy. Name the two metals in magnalium.
Pure gold is soft. Suggest why jewellery is usually made from a gold alloy rather than pure gold.
42 exam-style questions on Edexcel GCSE Chemistry 6.1 Transition metals, alloys and corrosion, covering 6.1.1 Properties of transition metals, 6.1.2 Corrosion and its prevention, and 6.1.3 Alloys and the uses of metals. Each one has a worked solution and a mark scheme showing where the marks go.