The Combustion of Fossil Fuels Is the Main Anthropogenic Source

Multiple Choice

The combustion of fossil fuels is the main anthropogenic source of carbon dioxide in the atmosphere. During the combustion of gasoline in automobile engines, oxygen reacts with hydrocarbons to produce carbon dioxide and water. Assume gasoline is octane (C₈H₁₈) . Write the balanced reaction equation, and report the sum of the stoichiometric coefficients written as integers.

A) 55
B) 29
C) 31
D) 30
E) 61