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Does silicon dioxide have a high melting point? Why or why not?

Answer 1

Silicon dioxide has an exceptionally high melting point, which you should look up and report.

#SiO_2# is a homologue of #CO_2#, a molecular, room temperature gas. Silicon dioxide is non-molecular, and forms an infinite array of #Si-O# bonds. On the other hand, the shorter #C-O# bonds allows #pi# bonding between the 2 atoms and a discrete molecular structure.

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Answer 2

Xavier Avery

Yes, silicon dioxide has a high melting point due to its strong covalent bonds, requiring significant energy input for breaking these bonds during the melting process.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.