Edexcel IGCSE Maths复习笔记 1.12.2 Calculations using Bounds What are bounds? Bounds are the smallest – the Lower Bound (LB) – and largest – the Upper Bound (UB) – numbers that a rounded number can...
Structure of Benzene In normal, everyday conversation the word 'aromatic' is used to refer to pleasant, fragrant smells However, in chemistry, it is used to describe molecules that contain o...
Edexcel IGCSE Maths复习笔记 1.12.1 Bounds & Error Intervals - Basics What are bounds? Bounds are the smallest – the Lower Bound (LB) – and largest – the Upper Bound (UB) – numbers that a rounde...
CB发布公告，从2023年起，AP宏观经济考试内容做出重要调整。 为什么要调整呢？我们经济老师总结下来： 与时俱进，补上漏洞，纠正错误 AP经济是一门非常和实际生活相关的课，在之前的教学过程中，我们老师就已经发...
01出分时间 根据官网信息，2022年AP考试放分时间为7月5日。 查询网站为： https://apstudents.collegeboard.org/view-scores 02如何向学校递交成绩1.CB可以帮你把成绩免费寄到指定的一所学校。只需登录AP账号，选...
Aliphatic Amines Amines Amines can be thought of as derivates of ammonia, in which one or more of the hydrogens is replaced by an alkyl or aryl group The number of substituted hydrogens is t...
近日，美国教育部College Scorecard网站最新发布的，基于900多所学校，100,000多个大学学位课程和超过500万毕业生的起薪数据，最终确定了各个大学薪资排名，及各个专业学位下的院校薪资排行榜。 在专业排名方面，...
Edexcel IGCSE Maths 复习笔记 1.11.1 Ratios What is a ratio? A ratio is a way of comparing one part of a whole to another A ratio can also be expressed as a fraction (of the whole) We often use a ra...
Condensation Polymers Addition polymerisation has been covered in reactions of alkenes They are made using monomers that have C=C double bonds joined together to form polymers such as polyet...
Amino Acids Amino acids are organic compounds that contain two functional groups: A basic amino (-NH2) group An acidic carboxylic acid (-COOH) group Due to the presence of both a basi...
Organic Synthesis It is possible to make a large number of organic products from a few starting compounds and the necessary reagents and conditions Knowing how organic functional groups are ...
Organic Mechanisms Organic Mechanisms Throughout the A Level course you have met a number of organic mechanisms You must be able to provide these in full if asked for You must be able to app...
