Re: Is glass a covalent or ionic compound?

Depends on the glass.

Fused quartz is a covalent compound, with each silicon atom covalently bonded to 
four other silicon atoms via one oxygen atom per bond (e.g. Si-O-Si links). But 
other glasses have ionic compounds like sodium carbonate mixed in to lower their 
melting points or otherwise improve their properties.

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engine and look for "glass structure".

Dan Berger
MadSci Admin