1. CONCURRENT ENROLLMENT
CHAPTER 12
CONCURRENT ENROLLMENT

2. ALKENE NOMENCLATURE General formula for alkenes CnH2n Naming alkenes
Name the longest chain that contains the DOUBLE BOND have suffix -ene
Number the longest chain so that the double bond
as the lowest number possible
Then locate and name attached groups
CH3-CH=CH-CH3
2-butene

3. CONTINUE

4. UNSATURATED HYDROCARBONS
A hydrocarbon containing a C=C or CΞC group
Alkene
A hydrocarbon containing one or more double bonds
Alkyne
A hydrocarbon containing one or more triple bonds
Aromatic hydrocarbons
Any organic compound that contains the characteristic benzene ring or similar feature

5. CONTINUE

6. CONTINUE
When you have more than one double or triple bond you need to state the location and change the suffix to indicate total number of bonds
CH2=CH-CH=CH2
1, 3-butadiene
Learning check page 378
Overhead

7. GEOMETRIES
Terpene
A biological compound comprised of five-carbon isoprene units
Essential oils

8. CONTINUE OVERHEAD Page 381-82 go over and then do learning check 12.3
Properties of alkenes
Similar to alkanes
They are nonpolar, insoluble in water, soluble in nonpolar solvents, and less dense than water
Alkenes with 4 atoms or less is a gas at room temp., 5 to 17 atoms a liquid and more than 17 is a solid at room temp
Low weight alkenes smell like gas
Table 12.2 page 383

9. CHEMICAL PROPERTIES Addition reactions Haloalkane or alkyl halide
A reaction in which a compound adds to a multiple bond
Haloalkane or alkyl halide
A derivative of an alkane in which one or more hydrogens are replaced by halogens
C=C Br-Br ----> - C -- C -
Br Br
Learning check page 384

10. HYDROGENATION A reaction in which the addition of hydrogen takes placePt
C=C H-H ----> - C -- C -
H H
Polyunsaturated
A term usually applied to molecules with several double bonds
Learning check page 384
A reaction with a hydrogen halide
C=C H-Br ----> - C -- C -
H Br

11. CONTINUE Markovnikov’s rule On board CH2=CH-CH3 + HBr
In the addition of H-X to an alkene, the HYDROGEN becomes attached to the carbon atom that is already bonded to more hydrogens
On board CH2=CH-CH3 + HBr
Learning check page 386
Hydration
The addition of water to a multiple bond
C=C H-OH ----> - C -- C -
H OH
Learning check page 387
Overhead

12. ADDITION POLYMERS Polymerization Polymer Addition polymer Monomer
A reaction that produces a polymer
Polymer
A very large molecule made up of repeating units
Addition polymer
A polymer formed by the linking together of many alkene molecules through addition reactions
Monomer
The starting material that becomes the repeating units of polymers
Overhead
Study skills on page 386

13. CONTINUE Copolymer Saran wrap page 389 Learning check page 389 Alkynes
An addition polymer formed by the reaction of two different monomers
Saran wrap page 389
Learning check page 389
Alkynes
Naming learning check page 392
Aromatic
Contains a benzene ring
On the board
Aliphatic compound
Any organic compound that is not aromatic

14. NOMENCLATURE OF BENZENE
Have to have only four bonds on each carbon
When a single hydrogen is replaced on a benzene ring the compound is a derivative of benzene
Some benzene derivatives have common names
Toluene, phenol, aniline, benzoic acid
Structures on board
Phenyl group
A benzene ring with one hydrogen absent, C6H5-
When two groups are attached to a benzene ring there are three isomeric structures
Meta(m), ortho(o), or para(p)
On board

15. Two or more groups
Use the lowest number and groups are arranged in alphabetical order page 396
Learning check page 397
Read pages
Know the key reactions