What is the chemical formula for propane?

The chemical formula for propane is C3H8, which indicates that each molecule of propane is composed of three carbon atoms (C) and eight hydrogen atoms (H). This molecular structure reflects propane's classification as an alkane, a type of hydrocarbon characterized by single bonds between carbon atoms.

Understanding this formula is important because propane is widely used as a fuel source in various applications, including heating, cooking, and as a power source for engines. Knowing the correct chemical composition helps technicians accurately identify and handle propane in residential and commercial settings.

Other options listed represent different hydrocarbons. For example, C2H6 is the formula for ethane, C3H6 is for propene (an alkene), and CH4 represents methane, the simplest alkane. Recognizing the differences between these compounds is crucial in the field of propane and natural gas technology.