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  1. Water - Wikipedia

    Water is an inorganic compound with the chemical formula H2O. It is a transparent, tasteless, odorless, [c] and nearly colorless chemical substance. It is the main constituent of Earth's …

  2. Water | Definition, Chemical Formula, Structure, Molecule ...

    Nov 7, 2025 · Although water molecules are simple in structure (H2O), the physical and chemical properties of water are extraordinarily complicated. Professor and Associate Head, …

  3. H2O Wireless: Prepaid Unlimited Plans with No Contract

    H2O Wireless service is for personal use in the U.S. only. Capable device required for 4G LTE speeds and/or Hotspot. Speeds limited by device/location.

  4. Water | H2O | CID 962 - PubChem

    Water (chemical formula: H2O) is a transparent fluid which forms the world's streams, lakes, oceans and rain, and is the major constituent of the fluids of organisms. As a chemical …

  5. H2O Definition - Intro to Chemistry Key Term | Fiveable

    H2O is the chemical formula for water, a vital compound for life on Earth that covers approximately 71% of the planet's surface. Water exists in three main phases: solid (ice), …

  6. H2O Definition & Meaning | Dictionary.com

    H2O definition: The chemical symbol (see also symbol) for water. Each molecule of water contains two atoms of hydrogen (H) joined to a single atom of oxygen (O). See examples of …

  7. Water H₂O - Chemical Compound Info

    Water is a chemical compound; main constituent of the fluids of most living organisms with a chemical formula of H₂O.