Reactivity of Metals
15 past-paper questions on Reactivity of Metals · examined 2021–2024.
20248 questions
You are going to investigate the reactions of three metals, X, Y and Z, with aqueous copper(II) sulfate. Determine the temperature increase in each reaction and write your answers in Table 1.1.
Explain how your observations show that X is in excess in Experiment 1.
Use your results to arrange X, Y, and Z in decreasing order of reactivity. Explain how the results give this order of reactivity.
A student repeats the experiment using a fourth metal. This metal is the second most reactive of the four metals. Suggest a temperature increase for this experiment.
State the value in Table 2.1 which the student records to an incorrect degree of precision.
The temperatures for D are shown in Fig. 2.1. Record these temperatures in Table 2.1. Calculate and record the temperature increases for B and D in Table 2.1.
Explain how these observations show that B is in excess in this reaction.
Using the equation in (iii), write the formula for: • the colourless solution • the grey solid • the brown solid.
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