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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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microAAA microAAA
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11 years ago
Intermolecular forces present in SiO2? Why is its boiling point higher than SO2?
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11 years ago
SiO2 is not a discrete molecular compound, but a networked solid. The actual building unit in SiO2 - which you may know as quartz - is the (SiO4)4-, a tetrahedral dianion; all four oxygen atoms at the corners are shared between neighboring tetrahedrons, which accounts for the empirical formula SiO2. Obviously, such a structure will have a pretty high melting point, especially when you consider that the Si-O bond is very strong.
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micphymicphy
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11 years ago
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