Question

Why is carbon dioxide a pure substance and not a mixture?

Answer 1

Carbon dioxide is considered a pure substance because it is a compound composed of carbon and oxygen with consistent properties.

Step-by-step explanation:

A pure substance is one that contains only one kind of matter with a fixed, definite set of properties. Carbon dioxide (CO2) is considered a pure substance because it is a compound composed of carbon and oxygen. Regardless of the source or sample, carbon dioxide always has the same chemical composition and properties.

Answer 2

This is because carbon dioxide comes from many things pure if you added anything to it ( like oxygen, or methane ) then It would not be even close to being carbon dioxide anymore...


I hope that this helps you. :)