In chemistry, there is a class of compounds called alkanes. They have the general formula , where C stands for a carbon atom and H stands for a hydrogen atom. The subscript x stands for the number of carbon atoms, and the subscript stands for the number of hydrogen atoms in one molecule of the compound. Carbon atoms Hydrogen atoms Alkane Formula 1 4 2 6 3 8 Suppose an alkane had 8 carbon atoms. How many hydrogen atoms would it have?