Edexcel A Level Chemistry:復習筆記6.2.7 Cis-platin
Cis-platin Sometimes, complexes with?four coordinate bonds?may adopt a?square planar?geometry instead of a tetrahedral one Cyanide ions (CN-) are the most common ligands to adopt this geomet...
Edexcel A Level Chemistry:復習筆記6.2.6 Tetrahedral Complexes
Tetrahedral Complexes When there are?four coordinate bonds?the complexes often have a?tetrahedral?shape Complexes with four?chloride?ions?most commonly adopt this geometry Chloride ligands a...
Edexcel A Level Chemistry:復習筆記6.2.5 Octahedral Complexes
Octahedral Complexes Octahedral?complexes are formed when a central metal atom or ion forms?six coordinate bonds This could be six coordinate bonds with?six?small,?monodentate?ligands Exampl...
普林斯頓更新學費新政，還有哪些美國大學擁有學費優惠政策？
眾所周知，美國TOP大學的學費一向“驚人”，對于家庭情況不太優渥的同學來說，更是一個巨大的難題。 根據U.S.News報告數據顯示，近20年來，美國私立大學的平均學雜費上漲了144%；公立大學的州外學雜費上漲了171%；...
Edexcel A Level Chemistry:復習筆記6.2.4 Ligands
Monodentate ligands Monodentate?ligands can form only?one?dative bond to the central metal ion This is because they have a single lone pair of electrons to form a dative bond with the metal ...
2022-2023FBLA翰林考點報名中！詳細解讀14個參賽科目，考察側重點，哪個科目更易獲獎？
FBLA全球未來商業領袖挑戰? 2022-2023新賽季報名進行中? 作為美國三大商賽之一，由美國哥倫比亞大學教授聯合美國各商學院發起的FBLA是極具含金量的商科學術挑戰，也是美國中學校長聯合會(NASSP)每年官方推薦的學...
Edexcel A Level Chemistry:復習筆記6.2.3 Coloured Ions
Coloured Ions Perception of colour Most transition metal compounds appear coloured. This is because they absorb energy corresponding to certain parts of the visible?electromagnetic spectrum ...
epq項目題目選題來了！不同方向EPQ選題供你參考
已經下定決心做一個EPQ項目，卻呆坐在一個空白的電腦屏幕前，不知從何入手... ...這是不是你？EPQ的全稱是Extended Project Qualification，是A-Level課程以外的獨立研究項目，涉及到大量寫作、計劃和自我激勵。e...
Edexcel A Level Chemistry:復習筆記6.2.2 Transition Metal Complexes
Transition Metal Complexes Transition element ions can form complexes which consist of a?central metal ion?and?ligands A ligand is a molecule or ion that forms a co-ordinate bond with a tran...
Edexcel A Level Chemistry:復習筆記6.2.1 Transition Metals
General Properties of Transition Metals Transition metals are elements with an incomplete d-subshell that can form at least one stable ion with an incomplete d-subshell This definition disti...
Edexcel A Level Chemistry:復習筆記6.1.9 Redox Titration Calculations
Redox Titration Calculations Redox Titrations In a?titration, the concentration of a solution is determined by titrating with a solution of known concentration. In redox titrations, an?oxidi...
Edexcel A Level Chemistry:復習筆記6.1.8 Fuel Cells
Fuel Cells A fuel cell is an electrochemical cell in which a fuel?donates?electrons at one electrode and oxygen?gains?electrons at the other electrode These cells are becoming more common in...
