Covalent bonds

apchemstudent
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

Attachments

• Covalent bonds.jpg
9.9 KB · Views: 464

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.