The law of definite proportions, discovered by Joseph Proust, states that the elements of a chemical compound will maintain their established proportion regardless of the amount. John Dalton’s law of multiple proportions combined with this formed the basis of the first atomic theory. Exceptions exist due to imprecise experimentation and undiscovered isotopes. The law of […]
Definite articles are used before a known or unique noun, such as in references to geographic locations or superlatives. “The” is the only definite article in English, while “a” or “an” are indefinite. The definite article is used to refer to a particular noun, while the indefinite article is used to introduce a generic noun. […]
