Sample Response: If the reaction is a chemical change, new substances with different properties and identities are formed. This may be indicated by the production of an odor, a change in color or energy, or the formation of a solid.
D. jesse's car is a hybrid that shuts off extra pistons when it is not accelerating
When cruising, hybrid cars are able to employ electrical energy to drive the car.
Moreover, even if a vehicle is not a hybrid, a greater amount of fuel is consumed when one accelerates because the vehicle has to generate a force larger than the force of air resistance in order for it to accelerate.
This increased demand of force reduces the vehicle's fuel economy.