工程方向学生该如何选择AP科目？2023年AP社会考生如何报名考试？
AP作为美国“大学预科课程”，分为三十几个科目，更侧重考察的是学生在某一学科领域的能力。在美国大学的申请过程中，AP分数的重要性正在逐渐上升。那么AP是不是考得越多越好？到底该怎么去选才能助力未来的专业申...
生化医学方向学生该如何选择AP科目？2023年AP社会考生如何报名考试？
AP作为美国“大学预科课程”，分为三十几个科目，更侧重考察的是学生在某一学科领域的能力。在美国大学的申请过程中，AP分数的重要性正在逐渐上升。那么AP是不是考得越多越好？到底该怎么去选才能助力未来的专业申...
Edexcel A Level Chemistry:复习笔记8.2.4 Aspirin Preparation
Core Practical 16: Preparation of Aspirin This practical covers a number of key laboratory skills use appropriate apparatus to record a range of measurements use water bath or electric heate...
2023年AP考试报名工作正式启动，美国前30大学对AP成绩有何要求？
美国大学先修课程（Advanced Placement），简称AP课程，是由美国大学理事会（The College Board）在高中阶段开设的具有大学水平的课程，主要适合计划在美国就读本科的高中生学习，在全世界范围内（包括美国本土）...
Edexcel A Level Chemistry:复习笔记8.2.3 A-Level Qualitative Analysis
Core Practical 15: Analysis of Inorganic and Organic Unknowns Testing for positive ions Simple test tube reactions can be done to identify the following positive ions: Group 2 ions (M2+) Amm...
Edexcel A Level Chemistry:复习笔记8.2.2 Transition Metal Complexes
Core Practical 12: Preparing a Transition Metal Complex Method Weigh between 1.4 g and 1.6 g of copper(II) sulfate. To do this you should weigh a test tube and record its mass. Then add the ...
Edexcel A Level Chemistry:复习笔记8.2.1 Redox Titration
Core Practical 11: Redox Titration Redox Titrations In a titration, the concentration of a solution is determined by titrating with a solution of known concentration. In redox titrations, an...
Edexcel A Level Chemistry:复习笔记8.1.4 Activation Energy
Core Practical 14: Finding the Activation Energy of a Reaction In this practical the activation energy for the reaction between bromide ions and bromate(V) ions will be determined BrO3- + 5B...
Edexcel A Level Chemistry:复习笔记8.1.3 Rates of Reaction
Core Practical 13a: Titrimetric Methods The reaction between iodine in an acidic solution and propanone is CH3COCH3 (aq) + I2 (aq) → CH3COCH2I (aq) + H+ (aq) + I- (aq) We can follow the rate...
