A student wants to compare the heat energy changes that occur when two different metals, zinc and iron, react with copper(II) sulfate solution.
The student is provided with:
Devise a plan to compare the temperature changes produced when these two metals are reacted individually with the copper(II) sulfate solution.
94 exam-style questions on Edexcel GCSE Chemistry 8.2 Heat energy changes in chemical reactions, covering 8.2.1 Exothermic and endothermic changes, 8.2.2 Bond breaking, bond making and overall energy change, 8.2.3 Calculating energy change from bond energies, and 8.2.4 Activation energy and reaction profiles. Each one has a worked solution and a mark scheme showing where the marks go.