Question

What is the chemical formula for quartz?

Answer 1

Well, quartz is mineralized silica.....

Explanation:

i.e. quartz is `SiO_2`....

In contrast to `CO_2`, `SiO_2` is NON-MOLECULAR, and consists of infinite arrays of silicon each bound to 2 oxygen atoms.....etc.

Finely powdered silicon dioxide is used in the laboratory as silica gel, which is the primary material for chromatography and separation.