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Why SiO(2) does not dissolve in water....

Why `SiO_(2)` does not dissolve in water. 

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Silica `(SiO_(2))` is a non reactive compound in it.s normal state. a soccer ball (football). `to` This non reactivity is due to very high Si - O bond enthalpy. `to`
Silica is a giant molecule with 3-dimensional structure.
In Silicn each silicon atom is covalently bonded in a tetrahedral manner to four oxygen atoms.
`to` Hence `SiO_(2)` is insoluble in water.
* But slightly dissolves at high pressures when heated.
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