law of definite proportions → All samples of a given compound, regardless of their source or how they were prepared, have the same proportions of their constituent elements.
law of multiple proportions → When two elements (call them A and B) form two different com- pounds, the masses of element B that combine with 1 g of element A can be expressed as a ratio of small whole numbers.
Which statement best captures one of the differences between the law of definite proportions and the law of multiple proportions?
(a) The law of definite proportions applies to two or more samples of the same compound while the law of multiple proportions applies to two different compounds containing the same two elements A and B.
(b) The law of definite proportions applies to two different compounds containing the same two elements A and B while the law of multiple proportions applies to two or more samples of the same compound.
(c) None of the above. Both laws apply to multiple samples of the same compound.
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