Match the sequence number with the energy transformations from the water behind a hydroelectric dam to the lighting
of a light bulb.
1. rain falls, being trapped behind dams
2. energy transferred to home to power light bulb
3. turbines generate electrical energy
4. potential energy of water behind dam converted into kinetic energy by turning turbines

How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next