Edexcel IGCSE Chemistry 復習筆記 4.6.1 Carboxylic Acids
Edexcel IGCSE Chemistry 復習筆記 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復習筆記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 復習筆記 4.5.3 Manufacture of Ethanol
Edexcel IGCSE Chemistry 復習筆記 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 復習筆記 4.5.2 Oxidation of Ethanol
Edexcel IGCSE Chemistry 復習筆記 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 復習筆記 4.5.1 Alcohols
Edexcel IGCSE Chemistry 復習筆記 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 復習筆記 4.4.2 Bromine & Alkenes
Edexcel IGCSE Chemistry 復習筆記 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復習筆記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 復習筆記 4.4.1 Alkenes
Edexcel IGCSE Chemistry 復習筆記 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復習筆記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復習筆記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...
Edexcel IGCSE Chemistry 復習筆記 4.3.2 Halogens & Alkanes
Edexcel IGCSE Chemistry 復習筆記 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 復習筆記 4.3.1 Alkanes
Edexcel IGCSE Chemistry 復習筆記 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...
