AQA A Level Chemistry復習筆記3.1.3 Nomenclature
Nomenclature Systematic nomenclature?can be used to name organic compounds and therefore make it easier to refer to them The?alkanes?provide the basis of the naming system and the?stem?of ea...
AQA A Level Chemistry復習筆記3.1.2 Types of Formulae
Types of Formulae The?general formula?is a formula that represents a?homologous series?of compounds using letters and numbers Eg. the general formula of alkanes is CnH2n+2 A homologous serie...
AQA A Level Chemistry復習筆記2.3.4 Uses & Reactions of Chlorine
Reactions of Halide Ions A?disproportionation?reaction?is a reaction in which the same species is both oxidised and reduced The reaction of?chlorine?with?dilute alkali?is an example of a dis...
AQA A Level Chemistry復習筆記2.3.3 Testing for Halide Ions
Testing for Halides Silver ions & ammonia Halide ions can be identified in an?unknown?solution?by dissolving the solution in?nitric acid?and then adding?silver nitrate solution dropwise ...
斯坦福及藤校新生成績分布！美國TOP大學偏好錄取什么成績的學生？
美國大學入學人數跌破記錄了！ 明明申請競爭那么激烈， 到底是什么情況？ 據美國國家學生信息中心（National Student Clearinghouse Research Center）最新數據顯示：2022年春季本科入學人數相較去年減少了66.2萬...
AQA A Level Chemistry復習筆記2.3.2 Chemical Properties of Group 7
Halogens: Oxidising Agents Halogens react with metals by accepting an electron from the metal atom to become an ion with 1- charge Eg.? ?Ca (s) + Cl2?(g) → CaCl2?(s)??consisting of?Ca2+?and?...
2022馬歇爾經濟學會寫作比賽題目已公布，新賽季報名開啟！
馬歇爾學會是劍橋大學的經濟學會，馬歇爾經濟學會寫作比賽（Marshall Society Essay Competition）是面向A-level、IB和其他體系學生打造的寫作比賽，要求學生利用現實世界的相關論據對經濟理論進行充分解釋和合理...
AQA A Level Chemistry復習筆記2.2.4 Uses of Group 2 Elements
Uses of Group 2 Three different calcium compounds are used commonly in agriculture, construction and iron extraction: Limestone?- this is impure calcium carbonate Quicklime?- this is calcium...
AQA A Level Chemistry復習筆記2.2.3 Reactions of Group 2
Reactions of Group 2 The group 2 elements react with oxygen, water and dilute acids Group 2 Reactions - Observations Reactions with water and oxygen The reaction of group 2 metals wit...
