IB DP Chemistry: HL复习笔记6.1.6 Explaining Rates
Explaining Rates Concentration The more concentrated a solution is, the greater the number of particles in a given volume of solvent An increase in concentration causes in an increased collision fr...
AQA A Level Maths: Pure复习笔记3.1.2 Parallel & Perpendicular Gradients
Parallel & Perpendicular Gradients What are parallel lines? Parallel lines are equidistant meaning they never meet Parallel lines have equal gradients What are perpendicular lines? Perpendicula...
AQA A Level Maths: Pure复习笔记3.1.1 Basic Coordinate Geometry
Basic Coordinate Geometry What is basic coordinate geometry? Basic coordinate geometry refers to working with points, lines and shapes on the coordinate axis Cartesian coordinates are simply the x ...
IB DP Chemistry: HL复习笔记6.1.5 Rate Experiments
Rate Experiments During a reaction, the reactants are used up and changed into the products This means that as the reaction proceeds, the concentration of the reactants is decreasing and the concen...
AQA A Level Maths: Pure复习笔记2.13.1 Further Modelling with Functions
Further Modelling with Functions Assumptions, criticisms and refinements in modelling Modelling is a large part of A level mathematics Assumptions and refinements to models often need to be conside...
AQA A Level Maths: Pure复习笔记2.12.1 Modelling with Functions
Modelling with Functions What is a mathematical model? A mathematical model simplifies a real-world situation so it can be described using mathematics which can then be used to make predictions The...
IB DP Chemistry: HL复习笔记6.1.4 Activation Energy
Activation Energy For a reaction to take place, the reactant particles need to overcome a minimum amount of energy This energy is called the activation energy (Ea) In exothermic reactions the react...
AQA A Level Maths: Pure复习笔记2.11.2 Squared Linear Denominators
Squared Linear Denominators Partial fractions In partial fractions the common denominator is split into parts (factors) This is the reverse process to adding (or subtracting) fraction...
AQA A Level Maths: Pure复习笔记2.11.1 Linear Denominators
Linear Denominators What are partial fractions? This is the reverse process to adding (or subtracting) fractions When adding fractions a common denominator is required In partial frac...
