Question

The compound CO2 is made of

Answer 1

One Carbon atom (the C) and two Oxygen atoms (the O2), connected by a covalent (electon-sharing) bond.

Answer 2

Explanation:

The compound $CO_{2}$ is also known as carbon dioxide. It is a gas. It forms when one carbon atom combines with two oxygen atoms.

This can be illustrated as follows.

            $C(s) + \frac{1}{2}O_{2}(g) \rightarrow CO(g)$

            $CO(g) + \frac{1}{2}O_{2}(g) \rightarrow CO_{2}$

Consumption of carbon dioxide gas in very low concentrations is not harmful but consumption of its large concentration is very harmful as it can affect the respiratory system.