A car engine changes chemical potential energy into the blank energy of the moving car

Answer;

Kinetic energy

A car engine changes chemical potential energy into the kinetic energy of the moving car .

Explanation; A car engine converts potential chemical energy stored in gasoline into thermal energy and then into kinetic mechanical energy. When gasoline undergoes combustion it reacts with oxygen to produce carbon dioxide and water vapor. Gasoline is a mixture of octane and similar hydrocarbons and contains potential chemical energy. The hot exhaust gases from the combustion of gasoline that are produced within the cylinder expand and exert pressure, moving the piston in the cylinder outward then inward as the gas is exhausted. Kinetic mechanical energy of the moving pistons is transferred to the drive shaft and eventually to the wheels, giving the car kinetic mechanical energy.