Here's why:
* What is a compound? A compound is a substance formed when two or more different elements are chemically bonded together in a fixed ratio.
* What is a chemical formula? A chemical formula is a symbolic representation of the elements and their relative proportions in a compound.
For example:
* Water (H₂O) is a compound made of hydrogen (H) and oxygen (O) in a ratio of 2:1. Its chemical formula reflects this: H₂O.
* Sodium chloride (NaCl) is a compound made of sodium (Na) and chlorine (Cl) in a 1:1 ratio. Its chemical formula is NaCl.
Without a chemical formula, we wouldn't be able to accurately represent the composition and proportions of elements within a compound.
