Combining two hydrogen atoms with one oxygen atom yields water while combining two hydrogen atoms with two oxygen atoms yields hydrogen peroxide. This is an example of:

Question

Quizplus · Accepted Answer

The given example is an illustration of the law of multiple proportions, which states that when two elements combine to form more than one compound, the masses of one element that combine with a fixed mass of the other element are in the ratio of small, whole numbers. In this case, hydrogen combines with oxygen to form water (H2O) in the 2:1 ratio, and hydrogen peroxide (H2O2) in the 2:2 or 1:1 ratio. The other options are not applicable in this case.

Combining Two Hydrogen Atoms with One Oxygen Atom Yields Water