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 AQA A Level Biology notes on recombinant DNA technology with diagrams, definitions to support your understanding. Details include: Producing DNA fragments In vivo gene cloning Marker genes In vitro gene cloning (PCR) Locating genes Genetic fingerprinting Gel electrophoresis

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 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 AQA A Level Biology notes on photosynthesis with diagrams, definitions to support your understanding. Details include: Light dependent reaction Light independent reaction Effect of temperature on LID and LDR Limiting factors

Complete AQA A Level Biology notes on gene expression with diagrams, definitions to support your understanding. Details include: Gene mutations Causes of mutations Stem cells and totipotency Induced pluripotent stem cells Regulation of transcription and translation Effect of oestrogen on gene transcription Epigenetic control of gene expression RNA interference on gene expression Gene expression and cancer Oncogenes and tumour supressor genes Genome projects

Complete AQA A Level Biology notes on energy and ecosystem with diagrams, definitions to support your understanding. Details include: Definition of keywords Energy transfer and productivity Nitrogen cycle Phosphate cycle Fertilisers Environmental effects (eutrophication)

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

Introduction to alkanes at AS Level Chemistry with detailed reactions, mechanisms, definitions and diagrams.

Detailed explanation of reactions of haloaklanes, hydrolysis of haloalkanes and reaction mechanisms with detailed diagrams.

Detailed explanations of the things you need to know about alcohols at AS Level for Chemistry. Diagrams, definitions and explanations included!

Introduction to enthalpy at AS Level with detailed diagrams, explanations, definitions and experimental methods.

Detailed explanation of Group 2 and Group 7 of the periodic table with basic qualitative analysis and redox.

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.

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.

Foundations of rates of reaction and equilibrium for AS Level Chemistry. Detailed explanations of factors affecting rates of reaction, boltzman distribution, Kc and units of Kc

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.

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