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...
AQA A Level Chemistry复习笔记6.1.3 Melting Point Trend
Melting Point Trend The melting points of the oxides vary significantly across Period 3 and show a clear trend Melting point is a clear indication of the forces of attraction which exist bet...
AQA A Level Chemistry复习笔记6.1.2 Reaction with Oxygen
Reaction with Oxygen Oxide Formation The period 3 elements, excluding chlorine and argon, combine with oxygen to form oxides The oxide formed will contain the elements in their highest oxida...
A-Level经济学主要学习内容，应该如何冲刺A*？
A-Level经济学Economics是A-Level最受学生欢迎的科目之一，但是很多学生认为A-Level经济学的学习难度较大、高分率低，“不选不行，选了痛苦”成为了很多选择A-Level经济学学生的写照。 A-Level经济学主要学习内容 ...
A-level重考影响申请英国G5吗？
今年的A-level大考结束了，包括国际考试局和英国本土。然而今年的形势，小编也给大家说了，英国打算削减A-level高分6万个，今年上万人将无缘大学录取！考试发挥失利，或成绩不错但报空了的同学，怎么办？这就引出...
AQA A Level Chemistry复习笔记5.6.5 Buffers
Acid & Basic Buffers A buffer solution is a solution which resists changes in pH when small amounts of acids or alkalis are added A buffer solution is used to keep the pH almost constant...
AQA A Level Chemistry复习笔记5.6.4 pH Curves
pH Curves During a titration a pH meter can be used and a pH curve plotted A pH curve is a graph showing how the pH of a solution changes as the acid (or base) is added The result is charact...
AQA A Level Chemistry复习笔记5.6.3 Titrations
Titrations Volumetric analysis is a process that uses the volume and concentration of one chemical reactant (a standard solution) to determine the concentration of another unknown solution T...
