Which Substance is Covalently Bonded: SiO2 or C6H12O6?

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The discussion centers on the comparison of two covalently bonded substances, SiO2 (silicon dioxide) and C6H12O6 (glucose), to determine which one is the correct example. There is a clarification that hydrogen bonds do not count as covalent bonds, suggesting that SiO2 might be the more appropriate choice. Participants note that carbon allotropes, such as graphite, are held together by intermolecular covalent bonds, while intramolecular bonds are not applicable in this context. The conversation highlights the importance of understanding the types of bonds involved, including intermolecular forces like dipole-dipole and van der Waals interactions, and emphasizes the crystallization geometry of SiO2 as a point of consideration.
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I tried to google this but i found 2 substances that are covalently bonded. SiO2 and C6H12O6. Which one is the correct one? does hydrogen bonds count as covalent bonds? if not then it might be SiO2... Anyone have any ideas? Thanks
 

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I'm guessing A)

carbon allotropes are held together by intermolecular covalent bonds, intramolecular bonds don't apply.

you'll find that the intermolecular bonds may be dipole-dipole, vander wall etc...despite intramolecular covalent bonding in the other choices
 
I'll go for C.For A i'd the graphite as the typical counterexample.Check the crystalization geometry of \mbox{SiO}_{2},i think it fits.

Daniel.
 

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