| At its most basic the structural formula is the chemical formula showing the bonds that are present. |
| When the chemical formula of an ionic compound is written down, it is the empirical formula that is used. |
| The chemical formula for quinone is C 6 H 4 O 2, and its molecular weight is 108.1 grams per mole. |
| It has the chemical formula C 10 H 14 N 2, and the systematic name 3-pyridine. |
| It is underlined that recital 17 of the provisional Regulation recognises that each type, including KMPS, has a different chemical formula. |
| If a pure element is present the chemical formula is merely the chemical symbol for the element. |
