The law of multiple proportions states that when elements combine, they combine in the ratio of small whole numbers. For example, carbon and oxygen react and form CO or CO2 and not CO1.7. More »

An example of the law of multiple proportions is carbon monoxide and carbon dioxide. Carbon combines with oxygen in different proportions to form two different oxides. The ratio of the fixed weights of carbon that combin... More »

The law of definite proportions states that a chemical compound always contains the same proportion of elements by mass. That is to say, changing the scale of a sample of a compound does not alter its proportionate compo... More »

Joseph Louis Proust is a well-known chemist for discovering the law of definite proportions. At a time when it was not known if the composition of a compound was evenly distributed, Proust proved many wrong, including Be... More »

The law of definite proportions says that samples of a compound will always contain the same proportion of elements by mass. It is based on the principle that a compound is always made up of the same elements and that th... More »

Synthesis generally refers to the combining of multiple elements into a single entity or compound. While synthesis sometimes results naturally, scientists in many fields perform synthesis as part of experimentation, solu... More »

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The law of octaves in chemistry is a generalization of a correspondence between chemical properties and atomic weight, in which different elements with similar chemical properties are usually separated by some multiple o... More »