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...
眾所周知，美國(guó)TOP大學(xué)的學(xué)費(fèi)一向“驚人”，對(duì)于家庭情況不太優(yōu)渥的同學(xué)來(lái)說(shuō)，更是一個(gè)巨大的難題。 根據(jù)U.S.News報(bào)告數(shù)據(jù)顯示，近20年來(lái)，美國(guó)私立大學(xué)的平均學(xué)雜費(fèi)上漲了144%；公立大學(xué)的州外學(xué)雜費(fèi)上漲了171%；...
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 ...
FBLA全球未來(lái)商業(yè)領(lǐng)袖挑戰(zhàn)? 2022-2023新賽季報(bào)名進(jìn)行中? 作為美國(guó)三大商賽之一，由美國(guó)哥倫比亞大學(xué)教授聯(lián)合美國(guó)各商學(xué)院發(fā)起的FBLA是極具含金量的商科學(xué)術(shù)挑戰(zhàn)，也是美國(guó)中學(xué)校長(zhǎng)聯(lián)合會(huì)(NASSP)每年官方推薦的學(xué)...
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 ...
已經(jīng)下定決心做一個(gè)EPQ項(xiàng)目，卻呆坐在一個(gè)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(dú)立研究項(xiàng)目，涉及到大量寫作、計(jì)劃和自我激勵(lì)。e...
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...
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...
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...
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...
Storage Cells Electrochemical cells can be used as a commercial source of electrical energy Cells can be described as?primary, secondary?or?fuel cells Primary cells are?non-rechargeable?(irr...
Disproportionation & Electrode Potential A?disproportionation?reaction is where one element in a chemical is simultaneously reduced and oxidised, e.g. 2Cu+?(aq) → Cu2+?(aq) + Cu (s) Stan...
