an atom or a group of atoms with characteristic chemical and physical properties
Functional Groups
What constitutes a functional group?
It contains a heteroatom, a multiple bond, or SOMETIMES both.
3 Types of Functional Groups
organic compound composed ONLY of hydrogen and carbon atoms;
simplest type of organic compound
Hydrocarbon
two main classes of Hydrocarbons
aliphatic and aromatic
hydrocarbons that do NOT contain the benzene group, or the benzene ring
Aliphatic Hydrocarbons
hydrocarbons that contain one or more benzene rings
Aromatic Hydrocarbons
a six-membered ring with three double bonds
Benzene Ring
three main subcategories within aliphatic hydrocarbons
Alkanes
Alkenes
have a C-C triple bond as their functional group
Alkynes
general formula of alkanes
CnH2n+2
Enumerate the unsaturated hydrocarbons.
general formula of alkenes
CnH2n
general formula of alkyne
CnH2n−2
alkanes whose carbon atoms are joined in rings
Cycloalkanes
name ending in -ene
Alkene
Examples of Alkene
ethene (C2H4), propene (C3H6)
name ends with -ane
Alkane
Examples of Alkane
Methane (CH4), Ethane (C2H6), Propane (C3H8)
name ends with -yne
Alkyne
Examples of Alkyne
Ethyne (C2H2), Propyne (C3H4)
name ends with -yl benzene
Arene