The law of constant composition says ________.
A)that the composition of a compound is always the same
B)that all substances have the same composition
C)that the composition of an element is always the same
D)that the composition of a homogeneous mixture is always the same
E)that the composition of a heterogeneous mixture is always the same

Question

Quizplus · Accepted Answer

The law of constant composition, also known as the law of definite proportions, states that a compound is always composed of the same elements in the same proportion by mass. This means that no matter where the compound is found or how it is made, the ratio of the elements in the compound will be the same. Therefore, choice A is the best choice.

The Law of Constant Composition Says ________