Question

What is the law of constant composition? All atoms of a given element have the same mass and other properties that distinguish them from the atoms of other elements. All samples of a given compound have the same proportions of their constituent elements. When the elements are arranged in order of increasing relative mass, certain sets of properties recur periodically.

Answer 1

Step-by-step explanation:

That would be

All samples of a given compound have the same proportions of their constituent elements.

For example marble and limestone have the same proportions of Ca : C : O :- they are both calcium carbonate.