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Chemistry

Organic Chemistry,

Alkanes

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Done by Ang An Jun

Class: 4P201 Hwa Chong Institution

Lesson 2: TWINS!?!?!?

Tuesday, August 17, 2010

Some compounds have the same molecular formula but have different structural formula, like twins! These are called Isomers.

Isomerism is the existence of two or more compounds with the same molecular formula but different structural formulas

Isomers are compounds with the same molecular formula but different structural formulas.

Alkanes with more than 3 carbon atoms in the molecules can possess isomers.

Example: Butane, C4H10


As shown, both compounds have the same molecular formula of C4H10 but different structural formulas.

- Isomers have different physical properties but similar chemical properties of varying reactivity.



3:21 AM

Objectives

1) What is homologous series?

2) What are alkanes?

3) What are the structures of alkanes?

4) What is isomerism and isomers?

5) What are the properties of alkanes?

6) What are the reactions of alkanes?

7) What is cracking?

8) How does cracking obtain more useful alkanes?

9) Get A1 for chemistry

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