The law which states that a pure chemical compound, no matter how it is made, will be made up of the same elements contained in the same proportion by mass is
- law of conservation of masses
-
law of definite proportion
- law of multiple proportion
- law of reciprocal proportion
The correct answer is: B
Explanation
The law of definite proportions, also known as the law of constant composition, states that a pure chemical compound will always contain the same elements in the same proportion by mass, regardless of how it is made.
This law is true for any sample of a compound, regardless of its amount or phase (solid, liquid, or gas).
There is an explanation video available .