Which of the following best describes the law of multiple proportions?
W) When two pure substances react to form a compound, they do so in a definite proportion by mass
X) When two substances react with each other to form a compound, they do so in multiple proportions according to their mass
Y) When one element can combine with another to form more than one compound, the mass ratios of the elements in the compounds are simple whole-number ratios of each other
Z) There is no change in total mass during a chemical change
✔️Answer:Y) WHEN ONE ELEMENT CAN COMBINE WITH ANOTHER TO FORM MORE THAN ONE COMPOUND, THE MASS RATIOS OF THE ELEMENTS IN THE COMPOUNDS ARE SIMPLE WHOLE-NUMBER RATIOS OF EACH OTHER
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