Calculations for AS and A level Chemistry
Being confident in tackling different types of mole calculation is the foundation upon which much of A level chemistry stands
The ultimate A level chemistry resource
Being confident in tackling different types of mole calculation is the foundation upon which much of A level chemistry stands
This is not just more exam questions with exam board style mark schemes. You can find plenty of those
The model of the atom we used at GCSE is not sufficient for A level but it is really important
Given the electronic configuration of carbon, at first glance it would seem that it has only two electrons available for
Continue readingUnderstanding single and double bonds – sigma and pi bonding
I’ve tried to simplify the rules for naming alkanes in this video – I don’t think this requires notes so
It’s always important to start at the beginning! There is so much terminology in organic chemistry, from the naming of
Continue readingAromatic, aliphatic and alicyclic hydrocarbons
Working out the shape of a molecule or a bond angle always starts with a dot and cross diagram, even
Understanding the different types of intermolecular bond is usually straight forward. Describing them in writing is not 😳. All intermolecular
Electronegativity is the power of an atom in a molecule to attract electrons toward itself – we are typically talking
More good news! The properties of diamond and graphite and silicon dioxide have’t changed! On a more serious note though,
Continue readingGiant covalent (macromolecular) networks and simple molecules
This is the second modern theory of bonding, the first being valence bond theory. In molecular orbital theory covalent bonds
Our familiar model of covalent bonding is largely based on the Lewis model, with atoms sharing pairs of bonding electrons
Continue readingModern theories of bonding – valence bond theory
Once again, showing how covalent bonds are formed using dot and cross diagrams is simpler at A level than at