Answer:
1) 3-methylpentane 2)Butyne
Step-by-step explanation:
On the first molecule, we have a methyl group on the 3rd carbon, so you will have "3-methhyl". It's a 5 carbon molecule with no double bonds, so "-pentane" is required.
On the second molecule, we have a simple 4 carbon molecule with a triple bond which makes it an Alkyne. 4 carbons makes the prefix "but-" and a alkyne males the ending "-yne".