A student investigated the temperature change when different masses of ammonium nitrate dissolve in water.
In Step 2 of the method, the student used a beaker to measure out 100 cm3 of water.
State how Step 2 could be changed to measure the volume of water more accurately.
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.