# Question #204ec

Apr 17, 2017

There are only two hydrogens because the bromine atoms have replaced the other four.

#### Explanation:

The convention in naming organic compounds is that substituents (such as $\text{Br}$) replace or substitute the $\text{H}$ atoms on the $\text{C}$.

The parent alkane is ethane

So, the product of tetrabromination is

The $\text{Br}$ atoms have replaced four of the $\text{H}$ atoms.