Carbon is an amazing element. It is able to form millions of different compounds, so many in fact, that it has its own branch of chemistry. Organic chemistry is the chemistry of carbon. Carbon can form four bonds and can catenate (form long chains with itself). The bonds of carbon are kinetically stable (so don't easily react) but thermodynamically unstable (so contain a lot of energy). This makes it the ideal basis for complex forms of life.
Topic 10.2 Exploring several homologous series and their typical reactions.
Topic 10.1 Exploring nomenclature of organic compounds, and structural isomerism.
Topic 20.3 Exploring isomers that have the same bond sequences as each other, but different arrangements of atoms in 3-D space.
Topics 20.1.and 20.2 Summarise all of the organic reaction mechanisms and explore step-wise synthesis.