Question

Law of constant proportion definition class 9 ​

Answer 1

Answer:

Law of constant proportion states that a chemical compound always contains exactly the same proportion of elements by mass.

Explanation:

Hope this answer helps you!

Answer 2

Explanation:

law of constant proportion states that a chemical compound always contains exactly the same proportion of element by mass.

for a given unique che. 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.