Question

what does the formula of compound signifies ?

Answer 1

Representing Compounds. In a chemical formula, the elements in a compound are represented by their chemical symbols, and the ratio of different elements is represented bysubscripts. Consider the compound water as an example. Each water molecule contains two hydrogen atoms and one oxygen atom.

Answer 2

A chemical formula tells we the specific elements included in the compound and the number of atoms of each. The letters in a chemical formula are the symbols for the specific elements. So for example, H meanshydrogen, O means oxygen, S means sulfur, Cu means copper, F means fluorine, Fe means iron and Au means gold.