# Question #1825c

The center carbon $\left(\text{C}\right)$ atom has a double bond to two oxygen $\left(\text{O}\right)$ atoms.
$\text{O" = "C" = "O}$
So keep in mind that in the future to use the chemical symbols of elements to find out what they are. For example, $\text{C}$ is carbon and $\text{O}$ is oxygen, and since there are 2 oxygen atoms, it needs to be written as ${\text{O}}_{2}$.