Question

2. answer the following questions
H. State and explain the law of conservation
of mass.
1. State the law of multiple proportions.​

Answer 1

when and when two elements combine to form more than one compound the several ways of fast number that combines a fixed weight of second are in the ratio of their small whole number

this is known as law of multiple proportions

I don't know law of conversion of mass

Answer 2

Answer:

Law of conservation of mass

Explanation:

This law was put forth by Antoine Lavoisier in 1789.

He performed careful experimenal studies for combustion reaction and reached to the conclusion that in all physical and chemical changes, there is not net change in mass during the process.

Hence he reached to the conclusion that matter can neither be created not destroyed. This is called 'law of conservation of mass '.