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...
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...
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...
A-Level課程，就是英國本土的高中課程。具有引進(jìn)時(shí)間早、“能偏科”、“重刷題”的特點(diǎn)，是很多留學(xué)生的首選。 不過A-Level多達(dá)70多門課程，主要分為： 1.核心基礎(chǔ)課程：主要有數(shù)學(xué)、物理、化學(xué)、生物、地理; 2.核心...
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...
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劍橋國際考評(píng)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(nèi)容，PET scanning和Astronomy & Cosmology。今天帶大家總結(jié)Astronomy & Cosmology部分的五個(gè)部分，...
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 ...
Variable Oxidation States The table below shows the most common oxidation states of a few transition metals Oxidation states of transition elements table When transition elements form...
