Write a skeletal chemical equation for the process described. A car engine burns gasoline to power the movement and other functions of a car. The main component of gasoline used for this is known as octane (
CH.). In the pistons of the engine, this octane is exposed to oxygen (0); from the air, a spark is used to heat the mixture. This causes the octane to
burn with the oxygen, releasing carbon dioxide (CO) and water vapor (H,0). This causes the piston to expand rapidly, producing the energy needed to
operate the car.

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the answer is:  

line graphs show patterns in data with variables that change over time; whereas, circle graphs show data as parts out of a whole (such as out of 100%).

fe 55.85 g/mol and h2o 18.02 g/mol.

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.