What is the name of the following organic compound?

Question

CH_3CH_2CCCH_2CH_2CH_3

Answer 1

CH3CH2-C=C-CH2CH2CH3

I am assuming there is a double bond is between the carbons that are not linked to any hydrogens

count the number of carbons: 7
so, heptene

whenever there's a double, you would end with -ene (instead -ane [single bonds only])

note where the double bond is; count the carbons from left to right or right to left until you hit the double bond, depending which will give the lower number

3-heptene (the 3 denotes where the double bond is)