which one of the following substances does not exist in the indicated solid type?
a. graphite-network
b. Na-metallic
c. SiO2-molecular
d. NaCl-ionic
e. diamond-network
answer: C. SiO2-molecular
can someone explain why SiO2 is the answer, why it’s not molecular?
thanks so much 🙂 plz be through so i can know
2 Answers
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SiO2 is a network. Each Si is actually bonded to 4 oxygen, two belongs to oneself (thus SiO2), the other two belong to different Si atoms.
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i dont know.
im just average. and everyone else is sooooo smart.
