chemical formula

A chemical formula is a symbolic representation of a chemical substance, indicating the types and quantities of atoms that make it up. For example, water is represented by the formula H₂O, meaning it contains two hydrogen (H) atoms and one oxygen (O) atom. Chemical formulas help scientists communicate about substances clearly and efficiently, conveying important information about the composition and structure of molecules. They can range from simple formulas for small compounds to complex ones for larger, intricate molecules.