The scientific name of H2O is simply ‘water’. This name reflects its chemical composition, which consists of two hydrogen atoms covalently bonded to one oxygen atom. The formula H2O signifies that for every molecule of water, there are two atoms of hydrogen (H) and one atom of oxygen (O).
Water is essential for all known forms of life, and it exists in three states: liquid, solid (ice), and gas (water vapor). It plays a central role in many biological and chemical processes, making it a critical substance for ecosystems, human activities, and industrial applications.