Water is an inorganic compound with the chemical formula H 2 O. It is a transparent, tasteless, odorless, [c] and nearly colorless chemical substance. It is the main constituent of Earth's hydrosphere and the fluids of all known living organisms (in which it acts as a solvent [20]).

2025年1月28日 · Water is symbolized as H₂O, is a simple yet vital substance made up of two hydrogen atoms bonded to one oxygen atom. It’s found everywhere on Earth, from vast oceans to tiny droplets in the air.

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 compound, a water molecule contains one oxygen and two hydrogen atoms …

2025年3月4日 · Water, substance composed of the chemical elements hydrogen and oxygen and existing in gaseous, liquid, and solid states. It is one of the most plentiful of compounds and has the important ability to dissolve many other substances, which was essential to the development of …

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Water is the chemical substance with chemical formula H 2 O; one molecule of water has two hydrogen atoms covalently bonded to a single oxygen atom. [26] Water is a tasteless, odorless liquid at ambient temperature and pressure. Liquid water has weak absorption bands at wavelengths of around 750 nm which cause it to appear to have a blue color. [4]

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

2025年3月4日 · At 25 °C (77 °F) the concentration of hydrated H + (i.e., H 3 O +, known as the hydronium ion) in water is 1.0 × 10 −7 M, where M represents moles per litre. Since one OH − ion is produced for each H 3 O + ion, the concentration of OH − at 25 °C is also 1.0 × 10 −7 M.

2025年3月21日 · Water is a simple molecule consisting of one oxygen atom bonded to two different hydrogen atoms. Because of the higher electronegativity of the oxygen atom, the bonds are polar covalent ( polar bonds ).

2015年8月4日 · Its chemical formula, H2O, is the most recognizable and familiar for most people. Water is the most abundant molecule on Earth’s surface, making up between 70 to 75% of the surface in liquid and solid states.