Final answer:
In carbohydrates, there are twice as many hydrogen atoms as oxygen atoms. Similarly, in glycerol, which is a type of carbohydrate, there are also two times as many hydrogen atoms as oxygen atoms.
Step-by-step explanation:
Carbohydrates can be represented by the stoichiometric formula (CH2O)n, where n is the number of carbons in the molecule. In other words, the ratio of carbon to hydrogen to oxygen is 1:2:1 in carbohydrate molecules. Glycerol, which is a type of carbohydrate, has three carbons and eight hydrogen atoms. Therefore, there are two times as many hydrogen atoms as oxygen atoms in glycerol.