Question

what does a chemical formula contain? it contains chemical symbols that represent the elements and the numbers of atoms within a compo it lists all of the elements in an elemental group. it contains names of elements and mathematical symbols. it shows a list of molecules that an element can form.

Explanation:

A chemical formula uses chemical symbols for elements and sub - script numbers to show the number of atoms of each element in a compound. For example, in $H_2O$, 'H' and 'O' are chemical symbols for hydrogen and oxygen respectively, and '2' is the number of hydrogen atoms.

Answer:

It contains chemical symbols that represent the elements and the numbers of atoms within a compound.