With the Hoffman Electrolysis: Color-Enhanced Demonstration—ChemTopic™ Lab Activity, illustrate the fundamental principles of electrochemistry with the decomposition reaction of water using an electric current. Explore reactions at the cathode and anode, what ions are produced during the reaction and the relationship between the amount of electricity and amount of gas obtained. Available as part of the Electrochemistry—ChemTopic™ Labs digital collection. Click the Price link for digital collection pricing.