1 Select the Triggers tab, and then select New. 2  Set your time and frequency, and then select OK.  Open Windows Defender by clicking the Start button. In the search box, type Defender and then, in the list of results, click Windows Defender.
A. An empirical formula represent a molecule. B. an empirical formula gives the smallest whole number ratio of each type of atom in a MOLECULE. C. The molecular formula can be the same as the empirical formula in some situations. D. An empirical formula must be multiplied by an integer to obtain the molecular formula.
The chemical formula is a comprised of the symbols of the elements present and the relative number of each element. An empirical formula is a representation that shows only the lowest whole number ratio of the elements present. The molecular formula is based on the actual molecule.