Pearson Edexcel International GCSE (9–1) · CHEMISTRY · Chapter
Reactivity Series
163 practice questions
Topics covered
- Displacement reactions involving metal oxides20 practice questions
- Oxidation and reduction19 practice questions
- Displacement reactions involving solutions of salts19 practice questions
- Reactions of metals with water18 practice questions
- Reactions of metals with dilute acids19 practice questions
- Making predictions using the reactivity series19 practice questions
- Preventing rusting by galvanising21 practice questions
- Preventing rusting by using sacrificial protection18 practice questions
Practice questions
71–71 of 71 · Normal
Question 71
6 marks · Normal
Answer and see the solution →A student investigates the reaction between metals and dilute hydrochloric acid. She uses 0.010 mol of each metal and measures the temperature change during the reaction. Her results are shown below:
Temperature changes when metals react with dilute hydrochloric acid. Metal Initial temperature / C Maximum temperature / C Magnesium 20 42 Zinc 20 28 Iron 20 24 Copper 20 20 Another metal, chromium, is placed between iron and zinc in the reactivity series.
(a)[2 marks]Calculate the temperature rise for each metal. Complete the table below.
Add the temperature rise for each metal. Metal Temperature rise / C Magnesium Zinc Iron Copper (b)[2 marks]Based on your answers to part a, describe and explain the trend in reactivity of these metals with dilute hydrochloric acid.
(c)[2 marks]Predict the temperature rise the student would expect if she repeated the experiment using 0.010 mol of chromium. Explain your answer.