total # of e- an atom brings to the molecure

-

(number of bonds the atom is involved

+ total e- in non-bonded paris)

1. Alkanes: CH3CH3 ; ethane
2. Alkenes: H2C=CH2 ; ethene or ethylene
3. Alkynes: HC=-CH ; ethyne or acetylene
4. Dienes: H2C=CHCH=CH2
5. Arenes: (hexagon with half of the sides with double bonds) ; benzene

1. Alkyl halides: CH3CH2Cl ; Chloroethane or ethyle cholride
2. Alkenyl halides: H2C=CHCl ; Chloroethene or vinyl cholride
3. Aryl halides: H6H5Cl ; Chlorobenzene

1. Alcohols: CH3CH2OH ; Ethanol or ethyl alcohol
2. Phenols: C6H5OH ; Phenol
3. Ethers: CH3CH2OCH2CH3 ; Ethoxyethane or diethyle ether
4. Epoxides: H2C-CH2 ; Epoxyethane

                         \ /

                          O

5. Aldehydes:    O  ; ethanal or acetaldehyde

                       ll

                 CH3CH

6. Ketones:      O  ; 2-propanone or acetone

                      ll

                CH3CCH3

7. Carboxylic acids:     O ; Ethanoic acid or acetic acid

                                ll

                          CH3COH

H-I / I^-

-10

H-Br / Br^-

-9