Ratio

A comparison between quantities; coefficients in a balanced equation give the whole-number ratio in which particles or amounts of substances react and form.

The numerical relationship between quantities, written in the same order and reduced where possible.

A comparison showing the relative amounts of two or more quantities. In a balanced chemical equation, the coefficients give the ratio of amounts in moles.

A comparison showing the relative amounts of two or more quantities, usually written using colon notation such as 2:1.

A comparison of two quantities showing how much of one corresponds to the other.

The result of dividing one quantity by another to compare their relative sizes.

A comparison showing how much of one quantity there is relative to another, written using a colon, such as $3:1$.

A comparison of quantities showing how much of one corresponds to another, written for example as 2:3 or as a fraction.