Which of these statements best explains the law of constant composition?
A) All atoms of a given element have the same weight.
B) Atoms of different elements combine in fixed whole number ratios.
C) The weight of an object is neither created nor destroyed in a chemical reaction.
D) All samples of a given compound have the same proportion of constituent elements.
E) The sum of the masses of the reactants equals the sum of the masses of the products in a normal chemical reaction.

Question

Quizplus · Accepted Answer

The law of constant composition states that all samples of a given compound have the same proportion of constituent elements. In other words, the ratio of the elements in a compound will always be the same regardless of the source or method of preparation. This is because compounds are composed of specific molecules that have fixed numbers of atoms of each element.

Which of These Statements Best Explains the Law of Constant