AQA A Level Chemistry复习笔记7.3.1 Carboxylic Acids
Carboxylic Acids Carboxylic acids Carboxylic acid is the name given to the family of compounds that contain the carboxyl functional group, -COOH The general formula of a carboxylic acid is C...
Edexcel IGCSE Maths复习笔记 1.12.2 Calculations using Bounds
Edexcel IGCSE Maths复习笔记 1.12.2 Calculations using Bounds What are bounds? Bounds are the smallest – the Lower Bound (LB) – and largest – the Upper Bound (UB) – numbers that a rounded number can...
AQA A Level Chemistry复习笔记7.4.1 Structure of Benzene
Structure of Benzene In normal, everyday conversation the word 'aromatic' is used to refer to pleasant, fragrant smells However, in chemistry, it is used to describe molecules that contain o...
Edexcel IGCSE Maths复习笔记 1.12.1 Bounds & Error Intervals - Basics
Edexcel IGCSE Maths复习笔记 1.12.1 Bounds & Error Intervals - Basics What are bounds? Bounds are the smallest – the Lower Bound (LB) – and largest – the Upper Bound (UB) – numbers that a rounde...
AQA A Level Chemistry复习笔记7.5.1 Preparation of Amines
Aliphatic Amines Amines Amines can be thought of as derivates of ammonia, in which one or more of the hydrogens is replaced by an alkyl or aryl group The number of substituted hydrogens is t...
Edexcel IGCSE Maths 复习笔记 1.11.1 Ratios
Edexcel IGCSE Maths 复习笔记 1.11.1 Ratios What is a ratio? A ratio is a way of comparing one part of a whole to another A ratio can also be expressed as a fraction (of the whole) We often use a ra...
AQA A Level Chemistry复习笔记7.6.1 Condensation Polymers
Condensation Polymers Addition polymerisation has been covered in reactions of alkenes They are made using monomers that have C=C double bonds joined together to form polymers such as polyet...
AQA A Level Chemistry复习笔记7.7.1 Amino Acids
Amino Acids Amino acids are organic compounds that contain two functional groups: A basic amino (-NH2) group An acidic carboxylic acid (-COOH) group Due to the presence of both a basi...
AQA A Level Chemistry复习笔记7.8.1 Organic Synthesis
Organic Synthesis It is possible to make a large number of organic products from a few starting compounds and the necessary reagents and conditions Knowing how organic functional groups are ...
