Edexcel IGCSE Chemistry 复习笔记 4.3.2 Halogens & Alkanes
Edexcel IGCSE Chemistry 复习笔记 4.3.2 Halogens & Alkanes Halogens & Alkanes In a substitution reaction, one atom is swapped with another atom Alkanes undergo a substitution reaction...
Edexcel IGCSE Chemistry 复习笔记 4.3.1 Alkanes
Edexcel IGCSE Chemistry 复习笔记 4.3.1 Alkanes The Alkanes Alkanes are a group of saturated hydrocarbons The term saturated means that they only have single carbon-carbon bonds, there are no...
Edexcel IGCSE Chemistry 复习笔记 4.2.4 Cracking
Edexcel IGCSE Chemistry 复习笔记 4.2.4 Cracking Cracking Saturated molecules contain single bonds only whereas unsaturated molecules contain double bonds between their carbon atoms Alkanes a...
Edexcel IGCSE Chemistry 复习笔记 4.2.3 Nitrogen Oxides & Sulfur Dioxide
Edexcel IGCSE Chemistry 复习笔记 4.2.3 Nitrogen Oxides & Sulfur Dioxide Formation of Nitrogen Oxides Nitrogen Oxides These compounds (NO and NO2) are formed when nitrogen and oxygen reac...
Edexcel IGCSE Chemistry 复习笔记 4.2.2 Combustion
Edexcel IGCSE Chemistry 复习笔记 4.2.2 Combustion Fuels & Combustion The combustion of fossil fuels is the major source of atmospheric pollution Fossil fuels include: coal, oil, natural ...
Edexcel IGCSE Chemistry 复习笔记 4.2.1 Crude Oil & Fractional Distillation
Edexcel IGCSE Chemistry 复习笔记 4.2.1 Crude Oil & Fractional Distillation Crude Oil & Fractional Distillation Crude oil as a mixture is not a very useful substance but the different...
CIE A Level Physics复习笔记7.1.4 Wave Intensity
Wave Intensity Progressive waves transfer energy The amount of energy passing through a unit area per unit time is the intensity of the wave Therefore, the intensity is defined as power per unit ar...
Edexcel IGCSE Chemistry 复习笔记 4.1.3 Classifying Organic Reactions
Edexcel IGCSE Chemistry 复习笔记 4.1.3 Classifying Organic Reactions Classifying Organic Reactions The reactions of organic compounds can be classified into substitution, addition and combus...
Edexcel IGCSE Chemistry 复习笔记 4.1.2 Naming Organic Compounds
Edexcel IGCSE Chemistry 复习笔记 4.1.2 Naming Organic Compounds Naming Organic Compounds Names of compounds The names of organic compounds have two parts: the prefix or stem and the end part...
Edexcel IGCSE Chemistry 复习笔记 4.1.1 Organic Compounds
Edexcel IGCSE Chemistry 复习笔记 4.1.1 Organic Compounds Representing Organic Compounds Introduction Organic Chemistry is the scientific study of the structure, properties, and reactions of ...
CIE A Level Physics复习笔记7.1.3 The Wave Equation
Derivation of v = f λ Using the definitions of speed, frequency and wavelength, the wave equation v = fλ can be derived This is an important relationship between three key properties of a wave The ...
Edexcel IGCSE Chemistry 复习笔记 3.3.3 The Position of Equilibrium
Edexcel IGCSE Chemistry 复习笔记 3.3.3 The Position of Equilibrium Factors that Affect the Position of Equilibrium When a change is made to the conditions of a system at equilibrium, the sy...
