chemistry notes ( chapter 16 )

homologous series

compounds with same general formula and similar chemical properties because they have the same functional group

alkanes

hydrocarbons that contains only carbon single and carbon - hydrogen bond

example of alkanes + thier formula

methane = CH4

ethane = C2H6

propane = C3H8

physical property of alkanes

• low melting and boiling points

• weak forces of attractions

• very viscous

• insoluble in water but soluble in organic solvents

chemical properties of alkanes

• unreactive due to strong single carbon - carbon bond

combustion

burn with excess oxygen to produce carbon dioxide and water

substitution

alkanes react with halogen in the presence of ultraviolet light