Edexcel IGCSE Maths復習筆記 1.13.1 Standard Form - Basics What is standard form? Standard Form (sometimes called Standard Index Form) is a way of writing very big and very small numbers using power...
Optical Isomerism Optical isomerism Stereoisomers?are molecules that have the same?structural formula?but have the atoms arranged differently in space There are two types of stereoisomerism ...
Oxidation of Aldehydes Aldehydes and ketones contain the carbonyl functional group, C=O This is why aldehydes and ketones are also known as carbonyls The difference between aldehydes and ket...
Carboxylic Acids Carboxylic acids Carboxylic acid?is the name given to the family of compounds that contain the?carboxyl?functional group,?-COOH The general formula of a carboxylic acid is?C...
Edexcel IGCSE Maths復習筆記 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復習筆記 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發(fā)布公告，從2023年起，AP宏觀經(jīng)濟考試內(nèi)容做出重要調(diào)整。 為什么要調(diào)整呢？我們經(jīng)濟老師總結(jié)下來： 與時俱進，補上漏洞，糾正錯誤 AP經(jīng)濟是一門非常和實際生活相關(guān)的課，在之前的教學過程中，我們老師就已經(jīng)發(fā)...
01出分時間 根據(jù)官網(wǎng)信息，2022年AP考試放分時間為7月5日。 查詢網(wǎng)站為： https://apstudents.collegeboard.org/view-scores 02如何向?qū)W校遞交成績1.CB可以幫你把成績免費寄到指定的一所學校。只需登錄AP賬號，選...
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，美國教育部College Scorecard網(wǎng)站最新發(fā)布的，基于900多所學校，100,000多個大學學位課程和超過500萬畢業(yè)生的起薪數(shù)據(jù)，最終確定了各個大學薪資排名，及各個專業(yè)學位下的院校薪資排行榜。 在專業(yè)排名方面，...
Edexcel IGCSE Maths 復習筆記 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...
