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 * Straight Chain Hydrocarbons
 * ﻿A straight chain hydrocarbon is when every caron atom is linked to two other carbons atoms.
 * Branched Hydrocarbons
 * A branched chain hydrocarbon is when atleast 1 carbon atom is linked to either 3 or 4 other carbon atoms.
 * Structural isomers have the same molecular formula but different physcial and chemical properties.
 * Organic Conformations
 * Organic molecules are not stiff structures. They twist and turn, and this is called conformations.
 * An example of this is the bending of your wrist and elbow. Therefore your arm also has a range of conformation like organic molecules.
 *  [[image:http://etc.usf.edu/clipart/4100/4148/arm_2_md.gif width="303" height="238"]] [|source]

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