Question

attachment in the question
what is law of constant proportion​

Answer 1

Answer:

Law of constant proportion states that a chemical compound always contains exactly the same proportion of elements by mass. ... If we take some mass of water, 8/9 of its mass will be oxygen and 1/9 will be hydrogen.

Explanation:

this is your answer I hope it help you please mark me as brainlist

Answer 2

Answer:

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

Here is your right answer

i hope it help's you.

please mark my answer in barainlist