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KIND OF OXYGEN BOND AFFECTS PHYSICAL STRUCTURE
Demonstrated By Quartz Crystal & Dry Ice
Because of its simple molecular double bond, CO2 is a gas existing only as a volatile molecular solid at 78C or below. SiO2 is a giant covalent structure, with strong bonds in 3 dimensions, which make it a hard, high melting-point solid like quartz.
Copyright:© 2005 Richard Megna - Fundamental Photographs
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