Complete OCR A Level Chemistry notes on buffers with diagrams, definitions to support your understanding. Details include: Formation of buffers Action of buffers in our body Worked examples of buffer calculations pH curves Indicators Explaining indicator colour changes End point sensitivity Choosing the right indicator

Complete AQA A Level Biology notes on nervous coordination and muscles with diagrams, definitions to support your understanding. Details include: Myelinated motor neuron Resting and action potential Speed of nerve impulses Synapse Inhibition Muscle structure Sliding filament theory Types of muscle fibre

Complete OCR A Level Chemistry notes on chromatography with diagrams, definitions to support your understanding. Details include: Paper chromatography (TLC) Gas chromatography Interpretations of gas chromatography

Complete OCR A Level Chemistry notes on Amines, Amino Acids and Polymers with diagrams, definitions to support your understanding. Details include: Properties of amines and reactions Preparation of aliphatic and aromatic amines Reaction of amine and carboxyl group Amides Optical isomerism Condensation polymers Acids and base hydrolysis of polymers

Complete AQA A Level Biology notes on populations and ecosystems with diagrams, definitions to support your understanding. Details include: Definition of keywords Predator prey relationships Investigating populations Succession Conservation of habitats

Complete AQA A Level Biology notes on inheritance with diagrams, definitions to support your understanding. Details include: Monohybrid and dihybrid inheritance Punnet square Codominance Multiple alleles Autosomal linkage Epistasis Chi Squared Test

Foundations of AS Chemistry with supporting diagrams and definitions to prepare you for your exam

Detailed explanations of Alkenes at AS Level with reaction mechanism, stereoisomerism, tests for alkenes and addition polymerisation.

Introduction to the basics of organic chemistry at A Level with different definitions, reaction mechanisms and isomers.

Complete AQA A Level Biology notes on cell organelles with diagrams, definitions to support your understanding. Details include: Eukaryotic Cells Prokaryotic Cells Microscopy Cell Fractionation and Ultracentrifugation

Detailed explanations of the structure and bonding of different molecules and compounds. Diagrams of different shape of molecules with bond angles, intermolecular forces and electronegativity.

Complete OCR A Level Chemistry notes on carbonyl and carboxylic acids with diagrams, definitions to support your understanding. Details include: Formation of carbonyl compounds Nucleophilic addition mechanism of C=O Reactions of carbonyl compounds Identification of aldehydes and ketones Distinguish between aldehydes and ketones Reaction of carboxylic acids Test for carboxyl group Derivaties of carboxylic acid Acid and base hydrolysis of esters Preparation of esters Acyl chlorides Reactions of acid anhydrides

Complete OCR A Level Chemistry notes on aromatic compounds with diagrams, definitions to support your understanding. Details include: Delocalised model of benzene Evidence to disprove Kekule model Naming aromatic compounds Electrophilic substitution of benzene Arene vs Alkene reactivity Phenols Reaction of phenols Electrophilic substitution of phenol Directing groups

Complete OCR A Level Chemistry notes on rates of reaction with diagrams, definitions to support your understanding. Details include: Order of reaction Rate equation and constant Experimental techniques Initial rates Continuous monitoring Rate determining step Rate constants and temperature Arrhenius equation

Complete OCR A Level Chemistry notes on energy and entropy with diagrams, definitions to support your understanding. Details include: Lattice enthalpy Born-haber cycles Enthalpy changes in solution and experimental determination Dissolving process Factors affecting lattice enthalpy and hydration Enthalpy of hydration Entropy Gibbs free energy

Complete OCR A Level Chemistry notes on equilibrium with diagrams, definitions to support your understanding. Details include: Equilibrium constant Kc and Kp Calculating and determining Kc from experimental results Effect of Kc in pressure changes

Complete OCR A Level Chemistry notes on redox and electrode potentials with diagrams, definitions to support your understanding. Details include; Redox equations using half equations, oxidation numbers and acid and bases Manganate (VII) redox titrations Iodine/thiosulphate redox titrations Electrode potentials and E standard Predictions from electrode potentials Limitations using E standard values

Complete OCR A Level Chemistry notes on transition elements with diagrams, definitions to support your understanding. Details include: d-block elements and their electronic configuration Properties of transition elements Formation and shapes of complex ions (ligands)

Complete OCR A Level Chemistry notes on acids and bases with diagrams, definitions to support your understanding. Details include: Acid dissociation constant Ka Approximations with Ka Ionic product of water Kw.