A student adds equal masses of magnesium, iron and copper, with the same surface area, to separate samples of excess dilute hydrochloric acid. The acid samples have the same volume, concentration and temperature.
| Metal | Volume of hydrogen collected in 30 seconds in cm³ |
|---|---|
| Magnesium | 40 |
| Iron | 6 |
| Copper | 0 |
Use the results to explain what would be observed when a clean magnesium strip is placed in iron(II) chloride solution.
Predict what would be observed when a clean copper strip is placed in magnesium chloride solution. Use the results to justify your answer.
86 exam-style questions on AQA GCSE Chemistry 4.1 Reactivity of metals, covering 4.1.1 Metal oxides, 4.1.2 The reactivity series, 4.1.3 Extraction of metals and reduction, and 4.1.4 Oxidation and reduction in terms of electrons. Each one has a worked solution and a mark scheme showing where the marks go.