What are the chemical features of water

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Water ("H₂O") is an inorganic, polar compound that is a vital part of all known life. A molecule of water consists of two hydrogen atoms covalently bonded to one oxygen atom. Hydrogen atoms are attached to oxygen with a bond angle of 104.5°. Water exists in three physical states: solid (ice), liquid (water), and gas (water vapor). At room temperature, water is a transparent, tasteless, and odorless substance. Water has a pH of 7, making it neutral. It has a density of 1 gram per milliliter at 4°C (39°F). Water has a high specific heat capacity, which means that it takes a lot of energy to raise its temperature. Water also has a high surface tension, which means that it forms droplets rather than spreading out evenly over a surface. Liquid water can dissolve a wide variety of substances, and is hence known as a "universal solvent." Water is important for many chemical reactions, and is a necessary component of all living organisms.

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