Question

what is the law of constant proportion?Give the ratio of H:O by weight in water​

Answer 1

Answer:

Law. of constant proportion:- In a chemical substance the elements are always present in definite proportion by mass.

ratio of H:O is 1:6

Answer 2

Answer:

For example, pure water will always contain hydrogen and oxygen in a fixed mass ratio (a gram of water consists of approximately 0.11 grams of hydrogen and 0.88 grams of oxygen, the ratio is 1:8). The law of constant proportions is often referred to as Proust's law or as the law of definite proportions.