A ratio shows the relationship between two quantities.Formula
An equation that shows how two units of measurement are related is calleda(n) conversion factor
In a balanced equation, the coefficients show the mole ratio of the different substances. That is, it shows how each substance taking part in the reaction is related on a mole to mole basis.
It is determined by the chemical equation.
A 'ratio' shows a relationship between two numbers. There's no such thing as the ratio of one single number.