SIC S7賽季全球站放榜，翰林學員喜獲4金2銅！SIC新賽季組隊招募開啟！
SIC S7賽季全球站已經落下帷幕啦！ 翰林學員傳來喜訊， 目前已經收獲4金2銅！ *截止發稿前統計，持續更新中 2022戰績 SIC中學生投資挑戰 全球站 翰林學員W同學、L同學所在團隊獲得 ?3枚金獎 2枚銅獎? 投資杰出團...
華盛頓月刊發布2022美國大學排名，名校順序大洗牌！
聊到美國大學排名，家長們的第一印象就是U.S. News或QS。 但由于近年來數據造假的丑聞，U.S. News排名陷入了不少爭議，其準確性和合理性也遭到了一定的質疑。 《Washington Monthly（華盛頓月刊）》就打著和U.S. ...
Edexcel A Level Chemistry:復習筆記1.7.4 Yield & Atom Economy
Yield & Atom Economy Percentage yield In a lot of reactions, not all reactants react to form products which can be due to several factors: Other reactions take place simultaneously The r...
Edexcel A Level Chemistry:復習筆記1.7.3 Error & Uncertainty
Error & Uncertainty An error is the difference between a value or quantity obtained in an experiment and an accepted or literature value for an experiment There are two types of errors i...
Edexcel A Level Chemistry:復習筆記1.7.2 Titrations
Titration Calculations Volumetric Analysis Volumetric analysis?is a process that uses the volume and concentration of one chemical reactant (standard solution) to determine the concentration...
Edexcel A Level Chemistry:復習筆記1.7.1 Reacting Volume Calculations
Reacting Volume Calculations Reacting volume calculations are commonly associated with the reactions of gases All gases occupy the same volume under the same conditions At room temperature a...
Edexcel A Level Chemistry:復習筆記1.6.5 Amount of Substance Calculations
Amount of Substance Calculations As previously discussed, the amount of substance can be defined as the number of particles in a substance,?n, measured in moles (often abbreviated to mol) In...
Edexcel A Level Chemistry:復習筆記1.6.4 The Mole & the Avogadro Constant
The Mole & Avogadro The?Avogadro constant?(NA?or?L) is the number of particles equivalent to the relative?atomic?mass?or?molecular mass?of a substance The Avogadro constant applies to at...
Edexcel A Level Chemistry:復習筆記1.6.3 Applying Equations
Relating Observations to Chemical Equations Chemical equations give information about the reaction that is taking place Balanced equations show the number of particles participating in the r...
Edexcel A Level Chemistry:復習筆記1.6.2 Balanced Equations
Writing Balanced Equations A?symbol?equation is a shorthand way of describing a chemical reaction using?chemical symbols?to show the number and type of each atom in the reactants and product...
Edexcel A Level Chemistry:復習筆記1.6.1 Empirical & Molecular Formulae
Empirical & Molecular Formula Definitions The?molecular?formula?is the formula that shows the?number?and?type?of each atom in a molecule E.g. the molecular formula of ethanoic acid is C2...
適合11年級學生參加的國際競賽有哪些？
很多學生和家長都有一個誤解，以為參加學術活動不用著急，時間有的是，直到高中畢業都可以 “慢慢比”。要知道學術活動一般流程較長，出成績時間也慢，從初賽到出結果可能會用到半年甚至更久的時間。如果想將成績用...
