84) Why hydrogen and oxygen are considered elements whereas water
is a compound ?
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3
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hydrogen and oxygen are made up of same kind of atom hence it is considered as elements whereas water is made by the combination of different kinds of atoms hence it is called as a compound......
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Water is a compound because hydrogen and oxygen have reacted to form a new substance viz. water whereas in a mixture there is no reaction and the individual gases retain their identity;in short compound is chemical combination whereas mixture is the physical combination of the species taking part....
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