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...
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...
凱斯西儲大學怎么樣？ 凱斯西儲大學由凱斯理工學院和西儲大學于1967年合并而成，是美國一所以獨立研究聞名的私立大學，共設8個學院，共有100 多個本科課程，約160 個研究生專業及課程，145 個雙學位項目可供選擇...
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，...
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...
Colour in Transition Metal Ions Most transition element complexes are?coloured The transition metal ions can be identified by their colour The large variety of coloured compounds is a defini...
我們知道雅思口語考試的Part1部分，基本是圍繞著我們的衣食住行等個人信息來展開提問的，問來問去的核心不過就是我們在生活中做了什么事情，喜歡什么事情，為什么做這些事情，為什么喜歡這樣些事情等。 每一個人...
Shapes of Complex Ions Depending on the?size of the ligands?and the?number of dative bonds?to the central metal ion, transition element complexes have different geometries Dative bonds can a...
Ligand Exchange Ligand exchange?(or?ligand?substitution) is when one?ligand?in a complex is replaced by another Ligand exchange forms a new complex that is?more stable?than the original one ...
