What is the chemical formula for ammonia?

The chemical formula for ammonia is NH3. This formula represents the composition of a single molecule of ammonia. In ammonia, one nitrogen atom (N) is bonded to three hydrogen atoms (H). The nitrogen atom forms three covalent bonds with three separate hydrogen atoms, resulting in a structure where the nitrogen atom is at the center, with the hydrogen atoms surrounding it. This formula accurately represents the ratio and types of atoms present in ammonia, making NH3 the correct chemical formula.