Edexcel A Level Chemistry:复习笔记6.1.1 Reduction & Oxidation
Reduction & Oxidation To recap, there are three definitions of oxidation and reduction used in different branches of chemistry Oxidation and reduction can be used to describe any of the...
Edexcel A Level Chemistry:复习笔记5.5.9 Arrhenius & Activation Energy
Arrhenius & Activation Energy The rate equation shows how each of the reactants in a reaction effects the rate of the reaction and it includes the rate constant, k However, k only remain...
Edexcel A Level Chemistry:复习笔记5.5.8 Rates & Reaction Mechanisms
Deducing Reaction Mechanisms Chemical kinetics can only suggest a reaction mechanism, they cannot prove it However, they can be used to disprove a proposed mechanism Elementary steps ...
Edexcel A Level Chemistry:复习笔记5.5.7 Rate-Determining Steps
Deducing Rate-Determining Steps Rate-determining step & intermediates A chemical reaction can only go as fast as the slowest part of the reaction So, the rate-determining step is the slo...
Edexcel A Level Chemistry:复习笔记5.5.6 Reaction Order Graphs
Reaction Order Graphs Reaction Order Using Concentration-Time Graphs In a zero-order reaction, the concentration of the reactant is inversely proportional to time This means that the reactan...
2023年AP考试报名开始！附详细报名流程和注意事项，社会考生速来！
9月19日，美国大学理事会College Board 宣布大陆2023年AP考试报名正式开启。在2022-23学年，大学理事会继续与Prometric合作管理国内的AP考试报名和考务工作。 目前，2023年5月举行的AP考试报名工作已经正式启动，...
2023AP艺术史考试报名开启！社会考生如何报名？
9月19日，美国大学理事会College Board 宣布大陆2023年AP考试报名正式开启。 在2022-23学年，大学理事会继续与Prometric合作管理国内的AP考试报名和考务工作。 2022-23学年AP艺术史考试可以正式报名了！ AP艺术史...
Edexcel A Level Chemistry:复习笔记5.5.5 Continuous Monitoring Method
Continuous Monitoring Method Continuous monitoring involves collecting experimental data throughout the course of a reaction to plot a concentration-time graph Two of the most common ways to...
Edexcel A Level Chemistry:复习笔记5.5.4 Initial Rates Method
Initial Rates Methods The initial rates method determines the rate at the very start of the reaction when t = 0 The initial rate can be found by: Drawing a concentration-time graph Adding a ...
Edexcel A Level Chemistry:复习笔记5.5.3 Rates - Experimental Techniques
Rates - Experimental Techniques To measure the rate of a reaction, we need to be able to measure either how quickly the reactants are used up or how quickly the products are formed The metho...
Edexcel A Level Chemistry:复习笔记5.5.2 Rate Equations
Orders of Reaction The order of a reactant shows how the concentration of a chemical, typically a reactant, affects the rate of reaction It is the power to which the concentration of that re...
Edexcel A Level Chemistry:复习笔记5.5.1 Rates of Reaction
Rates of Reaction - Introduction The rate of reaction refers to the change in the amount or concentration of a reactant or product per unit time The units for rate of reaction are mol dm-3 s...
