The law of definite proportions states that
-
pure samples of the same compound contain the same elements combined in the same proportion by mass
- pure samples of substances are in the same proportion by mass
- chemical compounds are pure because they contain the same elements
- matter can neither be created nor destroyed.
The correct answer is: A
Explanation
The Law of Definite Proportions states that all pure samples of a particular chemical compound contain similar elements combined in the same proportion by mass.