AQA A Level Chemistry复习笔记8.3.1 Required Practical 10a
Introduction to required practical 10a Required Practical 10a: Preparation of an organic solid and a test of its purity This practical covers a number of key laboratory skills use appropriat...
Edexcel IGCSE Maths复习笔记 1.13.1 Standard Form - Basics
Edexcel IGCSE Maths复习笔记 1.13.1 Standard Form - Basics What is standard form? Standard Form (sometimes called Standard Index Form) is a way of writing very big and very small numbers using power...
AQA A Level Chemistry复习笔记7.1.1 Optical Isomerism
Optical Isomerism Optical isomerism Stereoisomers are molecules that have the same structural formula but have the atoms arranged differently in space There are two types of stereoisomerism ...
AQA A Level Chemistry复习笔记7.2.1 Aldehydes & Ketones
Oxidation of Aldehydes Aldehydes and ketones contain the carbonyl functional group, C=O This is why aldehydes and ketones are also known as carbonyls The difference between aldehydes and ket...
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...
