Which law of chemical combination states that when two elements combine to form more than one compound, the masses of one element that combine with a fixed mass of the other element are in ratios of small whole numbers?

💡 Solution & Explanation

John Dalton formulated the law of multiple proportions to explain how elements can form multiple distinct compounds such as carbon monoxide and carbon dioxide. The law of definite proportions states that a given chemical compound always contains its component elements in fixed ratio by mass. Conservation of mass asserts that matter is neither created nor destroyed during chemical reactions.