Clock Reaction
Click Image for Gallery
Safely display the roles of temperature and concentration in chemical reactions. You’ll mix one colourless solution with another. In a few seconds, the solution will suddenly turn dark blue. Increase the temperature of the solution, and the reaction occurs more rapidly. Dilute one of the solutions, and the reaction occurs more slowly. This modified version of the typical clock reaction uses safer chemicals to demonstrate the impact of changing temperature and concentration upon the outcome of chemical processes.