Are you finding chemistry hard? Don't worry - you are not alone! Learning chemistry is a bit like learning a new language, but once you understand the basics, you will soon be able to have a conversation with a person you couldn't understand before - or in your case, answer those chemistry exam questions with A* answers. These posters are designed to walk you through difficult calculations step by step, with worked examples, key words explained, and diagrams to make chemistry simple, and easier to understand :)

TOPICS COVERED IN POSTERS: STEP BY STEP, WORKED EXAMPLES, KEY WORDS EXPLAINED - all summed up on 1 page.

• BORN HABER CYCLES: Step by step calculation and worked example, definitions: enthalpy changes of atomisation and formation, ionisation energy, electron affinity, lattice enthalpy.

• COVALENT BONDING: Simple molecular vs giant structures (diamond, graphite, graphene), dot and cross diagrams, melting point, conductivity.

• DIAMOND-GRAPHITE-GRAPHENE: comparison of structure, bonding, melting points, conductivity, properties and uses.

• ELECTRODE POTENTIALS: Electrochemistry explained, SHE, Ecell calculations, anode and cathode half equations.

• ELECTROLYSIS: Ionic compounds/salts, making an electrolyte, reduction and oxidation half equations at cathode and anode, aqueous vs. molten.

• HESS LAW: simple step by step calculations using enthalpy changes of formation or combustion data. 

• INTERMOLECULAR FORCES: London forces/Van der Waals/induced-dipole-dipole, permanent dipole-dipole and hydrogen bonding made easy. Polar bonds, electronegativity and dipoles explained.

• IONIC BONDING: Giant lattice structure, dot and cross diagrams, properties: conductivity, melting point, solubility.

• METALLIC BONDING: Formation of metallic bonds, giant lattice structure, delocalised electrons, conductivity, malleability, ductility, melting and boiling points, group 1 vs. transition metals.