Question

Silicon dioxide, SiO2, is a(n) _____.

Answer 1

Silicon dioxide is a covalent compound which is polyatomic and has three atoms in each molecule.i think this is write 

Answer 2

Answer:

The correct answer would be- compound.

Explanation:

SiO2 or silicon dioxide is an oxide of silica that is a compound commonly known as silica. It is normally present in quartz and in different organisms naturally.

It is a major constituent of the sand. This compound has two molecules of oxygen and one molecule of silica and one of the abundant compounds present on the earth.

Thus, the correct answer is - compound.