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Cats (Felines)
Chemistry
How is silica made?
Answer

Wiki User
April 04, 2014 4:50AM
Silica (silicon dioxide) is made when elemental silicon is oxidized. Approximately 10% of the Earth's crust is quartz, the crystalline form of silica.
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Property of Silica gel is to absorb the moisture. Colour of dry
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silica gel is removed and the fresh silica gel is filled. The wet
silica gel can be heated and made dry for reuse.