To determine the names of these organic molecules using full nomenclature, we need to follow the IUPAC naming rules. Here's how we can approach each molecule:
1) H3C – CH – CH3
This is a propane molecule. Propane is made up of three carbon atoms connected in a straight chain, so the IUPAC name would be "propane."
2) H3C – CH – CH – CH3
This is a butane molecule. Butane has four carbon atoms connected in a straight chain, so the IUPAC name would be "butane."
3) H3C – CH2 – CH2 – CH2 – CH3
This is a pentane molecule. Pentane consists of five carbon atoms connected in a straight chain, so the IUPAC name would be "pentane."
4) H3C – CH = CH – CH – CH3
This is an octene molecule. Octene has eight carbon atoms with a double bond between the second and third carbon atoms, so the IUPAC name would be "2-octene."
5) H3C – C = C – CH3
This is a propene molecule. Propene has three carbon atoms with a double bond between the first and second carbon atoms, so the IUPAC name would be "propene."
6) H2C = CH – C – CH3 – CH3
This is a pentene molecule. Pentene has five carbon atoms with a double bond between the first and second carbon atoms. The longest chain is four carbons long, so the IUPAC name would be "4-pentene."
7) H3C – CH – CH2 – CH2 – CH2 – CH2 – Br
This is a bromohexane molecule. Hexane has six carbon atoms connected in a straight chain, and the bromine atom is attached to the end carbon atom, so the IUPAC name would be "hexane-1-bromide."
8) H3C – CH2 – CH – CH2 –CH3
This is a butene molecule. Butene has four carbon atoms with a double bond between the second and third carbon atoms, so the IUPAC name would be "2-butene."
9) H3C – CH2 – I
This is an iodomethane molecule. Methane has one carbon atom, and the iodine atom is attached to it, so the IUPAC name would be "iodomethane."