Question

(01.06 MC)

The gas carbon dioxide is a pure substance. Which of the following is true about carbon dioxide?

Group of answer choices

A:Carbon and oxygen are chemically bonded in it.

B:Carbon and oxygen retain their original identity in it.

C:It can be separated into carbon and oxygen using physical methods.

D:The proportion of carbon and oxygen is different in different samples of the gas.

Answer 1

It can be chemically separated if it is a compound. The gas carbon dioxide is a pure substance.

Step-by-step explanation:

Carbon dioxide is a pure substance because it has a fixed composition no matter where it was taken. Each molecule of carbon dioxide will always have 1 carbon and 2 oxygens.