They are called carcinogens
Its very hard to answer all of these questions
Answer:
I think the answer is stored energy
Explanation:
There are zero number of methylene groups in the substance 2,4-dimethylhexane. Methylene groups are the part of a molecule that contains a carbon atom that has a double bond or =CH. Looking at the structure of 2,4-dimethylhexane, you cannot see any carbon atom that has a double bond.
