Respuesta :
Water is a substance composed of hydrogen and oxygen and exists in solid, liquid and gaseous state in nature.
What is hydrogen?
Hydrogen is "a colourless, odourless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements".
What is oxygen?
Oxygen is "a non-metallic chemical element of Group 16 (VIa) of the periodic table".
What is solid?
Solid is a state of matter in which atoms or molecules are tightly packed.
What is liquid?
Liquid is a state of matter in which atoms are held loosely and are free to flow.
What is gas?
Gas is a state of matter which has no fixed shape and volume.
Hence, water exists in three states of matter.
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