Video: Hom kev sib cog lus twg yog tsim thaum Lewis acid reacts nrog Lewis puag?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
sib koom covalent bond
Hauv qhov no, qhov khoom ntawm Lewis acid puag yog dab tsi?
Cov cov khoom ntawm ib tug Lewis acid - puag cov tshuaj tiv thaiv paub tias yog "adduct" lossis "complex", txawm hais tias peb tsis nquag siv cov ntsiab lus no rau kev yooj yim proton-transfer. cov tshuaj tiv thaiv xws li ib qho hauv qhov piv txwv saum toj no. Ntawm no, cov proton ua ke nrog hydroxide ion los ua "adduct" H2O.
Ib yam li ntawd, Lewis acid thiab puag nrog piv txwv yog dab tsi? Lewis acids thiab bases tuaj yeem piav qhia tias tawv lossis mos. Piv txwv ntawm Lewis Acids : H+, K+, Mg2+, Fe3+, BF ib3, CO2,SO3, RMgX, AlCl3, Br2. Piv txwv ntawm Lewis Bases : OH-, F-, H2O, ROH, NH3,SO42-, H-, CO, PR3, C6H6.
Ib sab ntawm no, Lewis acid puag lub tswvyim yog dab tsi?
Hauv Lewis txoj kev xav ntawm kua qaub - puag tshuaj tiv thaiv, hauv paus pub khub ntawm electrons thiab kua qaub txais ib khub ntawm electrons. A Lewis acid yog li ntawd tej yam khoom, xws li H+ ion, uas tuaj yeem txais ib khub ntawm nonbonding electrons. Hauv lwm lo lus, a Lewis acid yog ib qho electron-pair acceptor.
Puas yog HCl yog Lewis puag?
A Lewis acid yog ib qho electron-pair txais; a Lewis puag yog ib tug neeg pab dawb electron-pair. Ib qho piv txwv yog HCl vs H+: HCl yog ib tug classical acid, tab sis tsis yog ib tug Lewis kua qaub; H+ yog a Lewis acid thaum nws tsim ib qho adduct nrog a Lewis puag.
Pom zoo:
Cov qauv ntawm cov pa roj carbon atom cuam tshuam li cas rau hom kev sib cog lus nws tsim?
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Yuav ua li cas yog daim ntawv cog lus sib txawv ntawm daim ntawv cog lus ionic?
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Hom kev sib cog lus twg yuav tsim ntawm fluorine thiab fluorine?
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Yuav ua li cas thaum hlau reacts nrog puag?
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Cov roj twg yog tsim thaum dilute hydrochloric acid reacts nrog magnesium carbonate?
Carbon dioxide