write the systematic name of each organic molecule: structure name

Answer

Explanation:

Step1: Identify the longest carbon - chain

For the first molecule, the longest carbon - chain has 8 carbons, so the parent name is octane.

Step2: Locate and name the substituents

There is an ethyl group at the 4 - th carbon and a methyl group at the 6 - th carbon. The systematic name is 4 - ethyl - 6 - methyloctane.

Step3: For the second molecule

The longest carbon - chain has 7 carbons, so the parent name is heptane. There is a chlorine atom at the 2 - nd carbon and a methyl group at the 4 - th carbon. The systematic name is 2 - chloro - 4 - methylheptane.

Step4: For the third molecule

The longest carbon - chain has 7 carbons, so the parent name is heptane. There are two methyl groups, one at the 3 - rd carbon and one at the 5 - th carbon. The systematic name is 3,5 - dimethylheptane.

Answer:

4 - ethyl - 6 - methyloctane
2 - chloro - 4 - methylheptane
3,5 - dimethylheptane