Edexcel IGCSE Chemistry 复习笔记 4.7.1 Esters
Edexcel IGCSE Chemistry 复习笔记 4.7.1 Esters The Esters Making Esters Alcohols and carboxylic acids react to make esters in esterification reactions Esters are compounds with the functional...
Edexcel IGCSE Chemistry 复习笔记 4.6.2 Reactions of Carboxylic Acids
Edexcel IGCSE Chemistry 复习笔记 4.6.2 Reactions of Carboxylic Acids Reactions of Carboxylic Acids The carboxylic acids behave like other acids They react with metals to form a salt and hydr...
Edexcel IGCSE Chemistry 复习笔记 4.6.1 Carboxylic Acids
Edexcel IGCSE Chemistry 复习笔记 4.6.1 Carboxylic Acids The Carboxylic Acids Carboxylic acids is the name given to compounds containing the functional group carboxyl, -COOH The general formu...
CIE A Level Physics复习笔记7.2.2 Polarisation
Polarisation Transverse waves are waves with their displacement perpendicular to their direction of travel. These oscillations can happen in any plane perpendicular to the propagation direction Tra...
Edexcel IGCSE Chemistry 复习笔记 4.5.3 Manufacture of Ethanol
Edexcel IGCSE Chemistry 复习笔记 4.5.3 Manufacture of Ethanol Industrial Synthesis of Ethanol Ethanol can be synthesised by the hydration of ethene Ethene is a by-product of the cracking of ...
Edexcel IGCSE Chemistry 复习笔记 4.5.2 Oxidation of Ethanol
Edexcel IGCSE Chemistry 复习笔记 4.5.2 Oxidation of Ethanol Oxidation of Ethanol Ethanol can undergo oxidation in three different ways: Combustion Aerobic oxidation Treatment with an oxidisi...
Edexcel IGCSE Chemistry 复习笔记 4.5.1 Alcohols
Edexcel IGCSE Chemistry 复习笔记 4.5.1 Alcohols The Alcohols Alcohols are colourless liquids that dissolve in water to form neutral solutions The first four alcohols are commonly used as fue...
Edexcel IGCSE Chemistry 复习笔记 4.4.2 Bromine & Alkenes
Edexcel IGCSE Chemistry 复习笔记 4.4.2 Bromine & Alkenes Bromine & Alkenes Alkenes are a homologous series of hydrocarbon compounds with at least one double bond between two of the c...
CIE A Level Physics复习笔记7.2.1 Electromagnetic Spectrum
Properties of Electromagnetic Waves Visible light is just one part of a much bigger spectrum: The Electromagnetic Spectrum All electromagnetic waves have the following properties in common: They ar...
Edexcel IGCSE Chemistry 复习笔记 4.4.1 Alkenes
Edexcel IGCSE Chemistry 复习笔记 4.4.1 Alkenes The Alkenes All alkenes contain a double carbon bond, which is shown as two lines between two of the carbon atoms i.e. C=C All alkenes contain ...
CIE A Level Physics复习笔记7.1.6 Doppler Effect for Sound Waves
Doppler Shift of Sound The whistle of a train or the siren of an ambulance appears to decrease in frequency (sounds lower in pitch) as it moves further away from you This frequency change due to th...
CIE A Level Physics复习笔记7.1.5 Transverse & Longitudinal Waves
Properties of Transverse & Longitudinal Waves In mechanical waves, particles oscillate about fixed points The direction of oscillations with regards to the direction of wave travel determine wh...
