A student adds equal-mass, freshly cleaned pieces of calcium, copper and magnesium to separate samples of dilute hydrochloric acid. The pieces are prepared with the same exposed surface area. The acid samples have the same volume, concentration and starting temperature.
The calcium produces bubbles rapidly. The copper shows no visible reaction. The gas collected from the calcium test burns with a squeaky pop.
Use the result of the gas test to explain where calcium should be placed relative to hydrogen in the reactivity series.
Explain why the copper shows no visible reaction.
Predict how the initial rate of bubbling with magnesium would compare with the initial rate of bubbling with calcium. Explain your answer.
113 exam-style questions on OCR GCSE Chemistry 4.1 Predicting chemical reactions, covering 4.1.1 Properties and trends in Groups 1, 7 and 0, 4.1.2 Properties of the transition metals, 4.1.3 Reactivity predicted from position in the Periodic Table, and 4.1.4 Reactivity of metals and the reactivity series. Each one has a worked solution and a mark scheme showing where the marks go.