Part of the reactivity series of metals is shown in the table below.
| Reactivity | Metal |
|---|---|
| most reactive | potassium |
| calcium | |
| zinc | |
| least reactive | copper |
Zinc is extracted from its ore by heating with carbon. Calcium is extracted from its ore using a different method because it is more reactive than carbon.
Give the name of the method used to extract calcium.
110 exam-style questions on Edexcel GCSE Chemistry 5.1 Obtaining and using metals, covering 5.1.1 The reactivity series of metals, 5.1.2 Displacement reactions as redox reactions, 5.1.3 Extracting metals from ores by reduction, 5.1.4 Biological methods of metal extraction, 5.1.5 Resistance to oxidation and recycling metals, and 5.1.6 Life cycle assessment. Each one has a worked solution and a mark scheme showing where the marks go.