Here it says write a condensed formula for the following compound. So here we have chapter 3 connected to a Ch which contains a CL coming off of it. That Ch is connected to another Ch that has a BR coming off of it. And then we end with another CH3O.
How would we write this? Well, we're going to have our CH3 to start that's connected to our chapter roop. Remember, we put we use parentheses to show our branch branches that CL is a branch. So we put parentheses CL. Then we have another chapter which has its own branch of branch, so in parentheses.
And then we conclude it with our Chapter 3. So this will represent our condensed formula with our two branches of chlorine and bromine.
