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Explain why , water is a compound and not a mxture . |
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Answer» Water is considered a compound because of the following reasons : (i) Water cannot be separated into its constituents , hydrogen and oxygen , by the physical methods (such as filtration , evaporation , distillation , sublimation , magnet , etc). (ii) the properties of water are entirely diffferent from those of its constituents , hydrogen and oxygen , for example , water is a liquid whereas hydrogen and oxygen are gases , water does not burn whereas hydrogen burns ,water does not suopport combustion whereas supports combustion . (iii) Heat and light are given out when water is prepared by by burning hydrogen in oxygen . (iv) the compostion of water is fixed , It contains hydrogen and oxygen combined togehter in a fixed proportion of 1:8 by mass, It has a definite formula ,`H_(2)O` (v) Water has a fixed boiling point of `100^(@)` C under standard almooshe3ric pressure. |
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