Water
H₂O
18.02 g·mol⁻¹⚡ Polarbent
Water (H₂O) is a bent, polar molecule essential for all known life. Its 104.5° bond angle arises from two lone pairs on oxygen.
Overview
Water is an inorganic compound with the formula H₂O. It is a transparent, tasteless, odourless, and nearly colourless chemical substance. Each water molecule contains one oxygen and two hydrogen atoms connected by single covalent bonds. The oxygen atom carries two lone pairs, giving the molecule a bent geometry (104.5°) and a strong dipole moment. Water is the most abundant molecule on Earth's surface and the only common substance to exist naturally as a solid, liquid, and gas.
Properties
| IUPAC Name | Water |
|---|---|
| Chemical Formula | H₂O |
| Molar Mass | 18.015 g·mol⁻¹ |
| Molecular Geometry | bent |
| Bond Angle | 104.5° |
| Polarity | Polar ⚡ |
| Category | Inorganic |
Geometry
bent: Bent (angular) — < 109.5° bond angle, two lone pairs on the central atom.