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Isomers Structural Isomers 1.a) Butane (C 4 H 10 ) 2-methylpropane (C 4 H 10 ) 2. 1-butene2-butene 2-methylpropene cyclobutane methylcyclopropane CH.

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Presentation on theme: "Isomers Structural Isomers 1.a) Butane (C 4 H 10 ) 2-methylpropane (C 4 H 10 ) 2. 1-butene2-butene 2-methylpropene cyclobutane methylcyclopropane CH."— Presentation transcript:

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2 Isomers

3 Structural Isomers 1.a) Butane (C 4 H 10 ) 2-methylpropane (C 4 H 10 ) 2. 1-butene2-butene 2-methylpropene cyclobutane methylcyclopropane CH 3 CH 2 CH 2 CH 3 CH 3 CHCH 3 CH 3

4 3.a) C 4 H 8 has more isomers because the position of the double affects the name and because ring structures can be drawn. 4. aldehydeketone alcohols ether

5 5.The OH bond is polar, the CO bond is less polar, thus the alcohol would have the higher boiling point and be soluble in water. 6.b) 1,2-dichloroethene requires cis or trans. 1,2-dichloroethane does not require cis or trans because they would both represent the same molecule (to move chlorine from the same side to opposite sides only requires that the C – C single bond be rotated). 7. trans-1,2-dimethylcyclopentane cis-1,2-dimethylcyclopentane

6 8.1,1-dimethylcyclopentane 9.a) not isomers (they dont have the same chemical formula: C 5 H 12 vs. C 5 H 10 ) b) structural isomers c) geometric isomers d) not isomers (both diagrams represent the exact same molecule)

7 11.Monomer: the smallest repeating unit of a polymer (propene in polypropylene). Polymer: a long chain molecule made up of many small identical units (monomers). Addition polymerization: a reaction in which unsaturated monomers combine with each other to form a polymer. 12.Teflon, polypropylene, polyester, polyethylene (pop bottles, grocery bags), polystyrene (packing material), Plexiglas, polyvinyl chloride (vinyl), natural rubber, etc. Polymers For more lessons, visit


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