The oxygen-to-hydrogen mass ratio of water is always 8.0 is an example of what fundamental law?

Name: The oxygen-to-hydrogen mass ratio of water is always 8.0 is an example of what fundamental law?
Brand: Quizplus
Rating: 4.9 (45 reviews)

Question

Quizplus · Accepted Answer

The Law of Constant Composition states that a given compound always contains the same elements in the same proportions by mass. In the case of water, the mass ratio of oxygen to hydrogen is always 8.0, regardless of the source or method of preparation.

The Oxygen-To-Hydrogen Mass Ratio of Water Is Always 8