All samples of a given compound, regardless of their source or how they were prepared, have the same proportions of their constituent elements. Which law does this refer to?
A) Law of definite proportions
B) Law of the conservation of mass
C) Law of modern atomic theory
D) Law of multiple proportions
E) First law of thermodynamics

Question

Quizplus · Accepted Answer

The law of definite proportions states that all samples of a given compound, regardless of their source or how they were prepared, have the same proportions of their constituent elements. This law is also known as the law of constant composition.

All Samples of a Given Compound, Regardless of Their Source