What is a chemical formula? A. An identification of the atoms in a molecule
B. The arrangement of electrons in an atom
C. Instructions on how a chemical is made
D. Two or more atom's bonded together

A. An identification of the atoms in a molecule

Explanation:

The chemical formula of a compound is a representation which shows all the elements therein and the mole relationship between them expressed as subscripts.

Therefore, a chemical formula allows us to identify atoms that are within a molecule.

A molecule is a covalent compound that has discrete or separate units.

For example;

         HCl represents 1 mole of hydrogen chloride molecules consisting of 1 mole of hydrogen atoms and 1 mole of chlorine atoms.

the answer is minerals.