Explanation:
The compound [tex]CO_{2}[/tex] 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.
[tex]C(s) + \frac{1}{2}O_{2}(g) \rightarrow CO(g)[/tex]
[tex]CO(g) + \frac{1}{2}O_{2}(g) \rightarrow CO_{2}[/tex]
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.
