Edexcel A Level Chemistry:复习笔记6.2.3 Coloured Ions
Coloured Ions Perception of colour Most transition metal compounds appear coloured. This is because they absorb energy corresponding to certain parts of the visible electromagnetic spectrum ...
epq项目题目选题来了！不同方向EPQ选题供你参考
已经下定决心做一个EPQ项目，却呆坐在一个空白的电脑屏幕前，不知从何入手... ...这是不是你？EPQ的全称是Extended Project Qualification，是A-Level课程以外的独立研究项目，涉及到大量写作、计划和自我激励。e...
Edexcel A Level Chemistry:复习笔记6.2.2 Transition Metal Complexes
Transition Metal Complexes Transition element ions can form complexes which consist of a central metal ion and ligands A ligand is a molecule or ion that forms a co-ordinate bond with a tran...
Edexcel A Level Chemistry:复习笔记6.2.1 Transition Metals
General Properties of Transition Metals Transition metals are elements with an incomplete d-subshell that can form at least one stable ion with an incomplete d-subshell This definition disti...
Edexcel A Level Chemistry:复习笔记6.1.9 Redox Titration Calculations
Redox Titration Calculations Redox Titrations In a titration, the concentration of a solution is determined by titrating with a solution of known concentration. In redox titrations, an oxidi...
Edexcel A Level Chemistry:复习笔记6.1.8 Fuel Cells
Fuel Cells A fuel cell is an electrochemical cell in which a fuel donates electrons at one electrode and oxygen gains electrons at the other electrode These cells are becoming more common in...
Edexcel A Level Chemistry:复习笔记6.1.7 Storage Cells
Storage Cells Electrochemical cells can be used as a commercial source of electrical energy Cells can be described as primary, secondary or fuel cells Primary cells are non-rechargeable (irr...
Edexcel A Level Chemistry:复习笔记6.1.6 Disproportionation & Electrode Potential
Disproportionation & Electrode Potential A disproportionation reaction is where one element in a chemical is simultaneously reduced and oxidised, e.g. 2Cu+ (aq) → Cu2+ (aq) + Cu (s) Stan...
Edexcel A Level Chemistry:复习笔记6.1.5 Thermodynamics & Electrode Potential
Thermodynamic Feasibility Feasibility The Eꝋ values of a species indicate how easily they can get oxidised or reduced The more positive the value, the easier it is to reduce the species on t...
