AQA A Level Chemistry复习笔记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复习笔记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物理新大纲Astronomy & Cosmology公式！
CAIE剑桥国际考评中心ALevel物理（9702）从2022年起重新修改了考试大纲。A2部分新增了两大块儿全新的内容，PET scanning和Astronomy & Cosmology。今天带大家总结Astronomy & Cosmology部分的五个部分，...
AQA A Level Chemistry复习笔记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 ...
AQA A Level Chemistry复习笔记6.2.5 Variable Oxidation States
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...
AQA A Level Chemistry复习笔记 6.2.4 Formation of Coloured Ions
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...
AQA A Level Chemistry复习笔记 6.2.3 Shapes of Complex Ions
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...
AQA A Level Chemistry复习笔记 6.2.2 Ligand Exchange
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 ...
AQA A Level Chemistry复习笔记 6.1.4 Oxides Reacting with Water
Oxides Reacting with Water Structure, bonding & electronegativity of the Period 3 elements table The oxides of Na and Mg which show purely ionic bonding produce alkaline solutions...
