Final answer:
The products formed from the complete reaction of hydrocarbons or carbohydrates with oxygen are CO2 and H2O.
Step-by-step explanation:
The products formed from the complete reaction of hydrocarbons or carbohydrates with oxygen are CO2 and H2O. This reaction is known as combustion, which is the combination of a hydrocarbon with oxygen to produce carbon dioxide and water. Combustion reactions release energy and are a primary source of energy production in our society. For example, the combustion of gasoline can be represented by the equation C8H18 + O2 → CO2 + H2O.