Edexcel IGCSE Chemistry 复习笔记 3.2.3 Catalysts
Edexcel IGCSE Chemistry 复习笔记 3.2.3 Catalysts Catalysts & Rates Catalysts are substances which speed up the rate of a reaction without themselves being altered or consumed in the reac...
Edexcel IGCSE Chemistry 复习笔记 3.2.3 Catalysts Catalysts & Rates Catalysts are substances which speed up the rate of a reaction without themselves being altered or consumed in the reac...
Edexcel IGCSE Chemistry 复习笔记 3.2.2 Explaining Rates Explaining Rates Increasing the number of successful collisions means that a greater proportion of reactant particles collide to form ...
Edexcel IGCSE Chemistry 复习笔记 3.2.1 Measuring Rates Measuring Rates You should be able to describe experiments to investigate the effect of surface area, concentration, temperature and a ...
Edexcel IGCSE Chemistry 复习笔记 3.1.6 Practical: Investigating Temperature Changes Practical: Investigating Temperature Changes Aim: To perform a calorimetry study of the reaction between HCl and ...
Edexcel IGCSE Chemistry 复习笔记 3.1.5 Bond Energy Bond Energy Energy is needed to break bonds which is absorbed from the reaction surroundings, so bond breaking is an endothermic process Th...
Edexcel IGCSE Chemistry 复习笔记 3.1.4 Energy Level Diagrams Energy Level Diagrams Energy Level Diagrams Energy level diagrams (sometimes called reaction profiles) are graphical representati...
Edexcel IGCSE Chemistry 复习笔记 3.1.3 Energetics Calculations Calculate Heat Energy Change In order the calculate heat energy changes you need to know the mass of the substance being heated...
Edexcel IGCSE Chemistry 复习笔记 3.1.2 Calorimetry Calorimetry Calorimetry is a technique used to measure changes in enthalpy of chemical reactions There are two types of calorimetry experim...
Edexcel IGCSE Chemistry 复习笔记 3.1.1 Exothermic & Endothermic Exothermic & Endothermic The changes in heat content can be determined and measured with a thermometer Note that the o...
© 2024. All Rights Reserved. 沪ICP备2023009024号-1