<p> Worksheet for Chemistry Inside Hydrogen Fuel Cell Cars?</p><p>Use this web site to help you answer the following questions. http://www.gm.com/explore/education/popups/fc_energy/fuelcell_interactive.html Road to the Future: Part 1: Fuel Cell Systems 1. Define fuel cell:</p><p>2. What powers a fuel cell car?</p><p>3. What is the purpose of the fuel tank in a Hydrogen powered car?</p><p>Part 2: The fuel cell 1. Why do they stack fuel cells?</p><p>2. Fuel cells require hydrogen and oxygen. a. Which of the 2 substances is readily available in the air?</p><p> b. List the 2 main sources of hydrogen. 1. 2. c. What is a fuel cell’s only emission</p><p>Part 2: The fuel cell – Inside the fuel cell 1. Define anode:</p><p>2. A catalyst is a substance which accelerates a chemical reaction. a. The platinum catalyst accelerates the reaction between what 2 substances?</p><p>3. What is the PEM and how does it work in the fuel cell?</p><p>4. Define cathode:</p><p>5. What is the purpose of the cathode?</p><p>CONTINUE ON REVERSE Part 3 Fuel cell chemistry What happens on the anode side? 1. How does hydrogen gas (H2) enter the system?</p><p>2. What happens when the H2 molecule hits the catalyst? Identify the 2 pieces.</p><p>3. Where do the electrons go and what is their job?</p><p>4. Finish this equation: 2 H2  </p><p>What happens on the cathode side? 1. What gas enters the fuel cell on the cathode side?</p><p>2. What is the function of the catalyst?</p><p>3. How are the H+ ions forced through the membrane?</p><p>4. What comes out of the exhaust pipe of a fuel cell car?</p><p>+ - 5. Finish this equation: O2 + 4H  4e  2 H20 </p>