Hydrocarbons S2 Chemistry

Hydrocarbons Compounds which contain carbon and hydrogen only. Examples? Where do they come from? Crude oil

Families Alkanes Alkenes Cycloalkanes

Naming hydrocarbons Meth- Eth- Prop- But- Pent- Hex- Hept- Oct- Non- Dec-

Homologous series A family of compounds which all have the same general formula and similar chemical properties.

Alkanes What is their general formula? CnH2n+2 What are their similar chemical properties? Relatively unreactive Flammable

Titan Titan – contains oceans of liquid methane

Alkenes What is their general formula? CnH2n

Addition reactions Use the SG Chemistry textbook to find out: What do the words “saturated” and “unsaturated” mean? Which family of hydrocarbons is “unsaturated”? Which family of hydrocarbons take part in addition reactions? Illustrate two examples of addition reactions: Using full structural formulae Using word equations

Complete Assessment Tests: 6.1 6.2 6.4

Cycloalkanes and isomers Use the SG Chemistry textbook to find out… The names and structures of the first six members of the cycloalkane family. The general formula of the cycloalkanes. The definition of the term “isomer”. The structures of three isomers of pentane. The structures of three isomers of butene, including one from a different homologous series.

Isomers Molecules with the same molecular formula but a different structural formula.

Isomers? C4H10 and C4H8 Hexane and hexene Hexane and cyclohexane Hexene and cyclohexane Complete Assessment Test 6.5

Cracking Aluminium oxide

Cracking

Complete Assessment Test 6.3