Why do they call water h20

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Word Lists. Choose your language. My word lists. Hence the compound atom or molecule of water, H2O , weighs Similarly, water a liquid, is made up of two parts of hydrogen and one part of oxygen, represented by the symbol H2O. Next to carbonic acid gas, water H2O is the most abundant gaseous product of decomposition.

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Many substances, including salts, sugars and acids, dissolve when they are immersed in liquid water. This is because water in general is a good solvent.

Substances which do not melt in water include oils and fats. Water is widespread throughout the universe. Interstellar clouds are rich in water vapor. Ice is present on many celestial bodies, including Mars and the moons of Jupiter and Saturn. Comets are also largely made of ice. However, water in its liquid state is abundantly available only on earth. Water is the main component of all known forms of life.