Water

Water (H20) is made up of 1 hydrogen atom and 2 oxygen atoms. 

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Compound: Yes

Element: No

Boiling point: 100 °C

Formula: H2O

Melting point: 0 °C 

Gas: Water vapour

States: Solid - ice, Liquid - water, Gas - water vapour

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Water vapour is a greenhouse gas.(keeps the Earth warm enough to support life) When liquid water is evaporated it form water vapour

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