the chemical structure of 1,2 - ethanediol ((ch₂)₂(oh)₂) is shown below. highlight each atom that is in a…

Explanation:

Step1: Identify methylene group

A methylene group is -CH₂-. In 1,2 - ethanediol, there are two methylene - like carbon atoms. Each carbon atom in the -CH₂- groups is bonded to two hydrogen atoms and two other atoms (in this case, one carbon and one oxygen).

Step2: Highlight atoms

The carbon atoms in the structure that are part of -CH₂- groups and the hydrogen atoms bonded to them should be highlighted. So, the two carbon atoms in the middle of the structure and the four hydrogen atoms bonded to these two carbon atoms are the ones to be highlighted.

Answer:

Highlight the two carbon atoms in the middle of the structure and the four hydrogen atoms bonded to them.