The chemical symbol used for water is H₂O. This symbol indicates that each water molecule is composed of two hydrogen atoms covalently bonded to one oxygen atom. The unique arrangement of these atoms gives water its distinctive properties, such as being a universal solvent, having a high specific heat, and exhibiting both liquid and solid forms, as seen in ice. Water is essential for life, playing a critical role in biological, chemical, and physical processes. Its importance extends across various fields, including environmental science, biology, and chemistry.