Question

(choose 2) co2 is which of the following. pure substance mixture compound element homogenous heterogenous

Explanation:

• A pure substance is a material with a constant composition. A compound is a type of pure substance formed when two or more elements chemically combine in a fixed ratio.
• \(CO_2\) (carbon dioxide) is made up of carbon (\(C\)) and oxygen (\(O\)) atoms chemically bonded together (\(CO_2 = C+ 2O\), fixed ratio of 1 carbon to 2 oxygen atoms).
• It is not an element (which has only one - type of atom), not a mixture (which has physically combined substances), and the terms heterogeneous and homogeneous usually refer to mixtures (homogeneous mixtures have a uniform composition throughout, heterogeneous mixtures have a non - uniform composition).

Answer:

Compound, Pure Substance