ssat阅读怎么学？我们需要把握哪些重点？
ssat阅读怎么学？很多同学在做SSAT题目的初期都很不适应，多数会与托福阅读产生比较。SSAT是一种测试学术能力的考试，在阅读上就体现为对考生理解能力的考查，考查的要求也不仅仅是看懂文章，而是要求真正理解文...
CIE A Level Chemistry复习笔记5.6.6 Factors affecting Rate Constant
Effect of Temperature on the Rate Constant At higher temperatures, a greater proportion of molecules have energy greater than than the activation energy Since the rate constant and rate of reaction...
CIE A Level Chemistry复习笔记5.6.5 Multi-Step Reactions
Kinetics of Multi-Step Reactions The reaction mechanism of a reaction describes how many steps are involved in the making and breaking of bonds during a chemical reaction It is the slowest step in ...
CIE A Level Chemistry复习笔记5.6.4 Rate Constant Calculations
Calculating the Rate Constant The rate constant (k) of a reaction can be calculated using: The initial rates and the rate equation The half-life Calculating the rate constant from the initial rate ...
CIE A Level Chemistry复习笔记5.6.3 Half-Life
First Order Reaction Half-life The half-life of a first-order reaction is independent of the concentration of reactants This means that despite the concentrations of the reactants decreasing during...
CIE A Level Chemistry复习笔记5.6.2 Kinetics Calculations
Kinetics: Calculations Order of reaction The order of reaction shows how the concentration of a reactant affects the rate of reaction Rate = k [A]m [B]n When m or n is zero = the concentration of t...
CIE A Level Chemistry复习笔记5.6.1 Basics of Kinetics
Kinetics: Basics The rate of reaction refers to the change in the amount or concentration of a reactant or product per unit time and can be found by: Measuring the decrease in the concentration of ...
CIE A Level Chemistry复习笔记5.5.9 Partition Coefficients
Partition Coefficient & Calculations The partition coefficient (Kpc) is the ratio of the concentrations of a solute in two different immiscible solvents in contact with each other when equilibr...
CIE A Level Chemistry复习笔记5.5.8 The Common Ion Effect
Solubility Product & the Common Ion Effect A saturated solution is a solution that contains the maximum amount of dissolved salt If a second compound, which has an ion in common with the dissol...
