Question

define-
law of multiple proportion
law of definite proportion
law of conservation pf mass

Answer 1

Explanation:

law of multiple proportion:- when two elements combine with each other to form more than one compound, the weights of one element that combine with a fixed weight of the other are in a ratio of small whole number

Answer 2

Answer:

Law of conservation of mass:

Mass can neither be created nor destroyed in a chemical reaction.

It was given by Antoine Lavoisier.

Law of Definite Proportions:

This law states that every compound no matter from which source it has been obtained, will contain the same elements in the same fixed ratio by mass.

It was given by Dalton.

Law of Multiple Proportions:

This law states that when two elements combine to form more than one compound, then the different masses of one element that combines with a fixed mass of another element, bear a simple whole number ratio to one another.

It was given by J. Proust.