Question

explain law of constan proportion​

Answer 1

Answer:

Law of constant proportion states that a chemical compound always contains exactly the same proportion of elements by mass. For a given unique chemical compound, its elemental composition is same for any sample that exists. ... If we take some mass of water, 8/9 of its mass will be oxygen and 1/9 will be hydrogen.

Answer 2

Explanation:

The law of constant proportions states that chemical compounds are made up of elements that are present in a fixed ratio by mass.