The catalytic converter on your automobile contains small amounts of a precious metal catalyst. Which of the following components would you expect to be decreased in your tailpipe emissions by a properly functioning catalytic converter in your automobile (Choose all that apply):
- water
- carbon monoxide
- carbon dioxide
- hydrocarbons
Gasoline is sold in various octane ratings. You make your selection of octane rating right at the pump. What is meant by an octane rating of 89?