AQA A Level Chemistry復習筆記7.2.3 Nucleophilic Addition
Nucleophilic Addition Many of the reactions which carbonyl compounds undergo are nucleophilic addition reactions The carbonyl group -C=O, in aldehydes and ketones is polarised The oxygen ato...
AQA A Level Chemistry復習筆記7.2.2 Reduction of Carbonyls
Reduction of Carbonyls Reduction of Carbonyls There are a large number of reducing agents which will reduce both an aldehyde and a ketone to an alcohol Aldehydes are reduced to primary alcoh...
AQA A Level Chemistry復習筆記7.1.3 Racemic Mixtures
Racemic Mixtures Net Optical activity Let’s suppose that in a solution, there is 20% of the enantiomer which rotates the plane polarised light?clockwise?and 80% of the enantiomer which rotat...
AQA A Level Chemistry復習筆記7.1.2 Identifying Chiral Centres
Identifying Chiral Centres Identifying chiral centres in a molecule takes a bit of practice whether it is from a formula, a 2D drawing or a 3D drawing To be successful you need to differenti...
熱門專業A-Level選課推薦，附2022-2023 A-Level考試時間
A-Level課程，就是英國本土的高中課程。具有引進時間早、“能偏科”、“重刷題”的特點，是很多留學生的首選。 不過A-Level多達70多門課程，主要分為： 1.核心基礎課程：主要有數學、物理、化學、生物、地理; 2.核心...
AQA A Level Chemistry復習筆記6.3.2 Reactions with Bases
Reactions with Bases The differences in the the chemistry of +2 and +3 aqua ions can be seen in their reactions with bases The reactions of iron(II), iron(III), copper(II) and aluminium with...
AQA A Level Chemistry復習筆記6.2.7 Catalysis
Catalysis Catalysts play an important part in industry allowing reactions to be carried out more quickly and at lower temperatures There are two types of catalysts,?heterogeneous?and?homogen...
CAIE ALevel物理新大綱Astronomy & Cosmology公式！
CAIE劍橋國際考評中心ALevel物理（9702）從2022年起重新修改了考試大綱。A2部分新增了兩大塊兒全新的內容，PET scanning和Astronomy & Cosmology。今天帶大家總結Astronomy & Cosmology部分的五個部分，...
AQA A Level Chemistry復習筆記6.2.6 Redox Titrations
Redox Titrations Redox titration involves an?oxidising agent?being titrated against a?reducing agent Electrons are transferred from one species to another In acid-base titrations indicators ...
