Reaction rate

In this activity students measure the temperature change in four chemical reactions and classify the reactions as exothermic or endothermic. Activity Endo- and exothermic reactions (demo)
In this activity students investigate the rate of reaction between thiosulphate-ions and hydrochloric acid. By using an turbidity sensor to measure the amount of light that passes through the mixture, the reaction rate can be determined. The reaction order can also be calculated from the results. Activity Rate and order of reactions (demo)