Video: Vim li cas lub hauv paus ntawm hydrides txo qis hauv pab pawg?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Vim lub xub ntiag ntawm ib leeg khub ntawm electron, lub hydrides ntawm cov ntsiab lus no yog yooj yim (Lewis hauv paus) hauv qhov xwm txheej. Cov pib txo qis nrog rau qhov loj ntawm lub hauv paus atom vim diffusion ntawm electrons tshaj qhov loj ntim i.e nqes pawg , raws li qhov luaj li cas ntawm lub ntsiab nce lub electron ceev ntawm lub caij txo.
Ntawm no, vim li cas qhov pib ntawm oxides nce hauv pab pawg?
Lub peev xwm ntawm atom "kom txais ib qho hluav taws xob" txo qis pawg yog li ntawd nce qhov nyiam ntawm cov ntsiab lus kom ua tau zoo Lewis hauv paus (nco txog Lewis puag yog ib qho khoom siv hluav taws xob-pair). Yog li qhov txo qis hauv electron affinity nqes pawg txhais tau hais tias cov khoom tau yooj yim pub dawb ib qho hluav taws xob ntau dua li tsis lees txais lawv.
Kuj Paub, dab tsi tshwm sim rau tus cwj pwm ntawm oxides hauv pawg thiab vim li cas? Acid tus cwj pwm ntawm oxides txo nqes pawg : Cov kua qaub tus cwj pwm ntawm oxides "qis nqes pawg "vim cov electronegativity txo nqes pawg . Electronegativity yog cov cuab yeej ntawm lub caij kom nyiam cov khub electron. Thaum cov hlau yog electropositive, nws muaj ntau dua yooj yim oxide hauv xwm.
Tib neeg kuj nug, vim li cas qhov kev ruaj ntseg ntawm hydrides txo qis rau pawg?
Cov stability ntawm hydrides txo los ntawm ammonia mus rau bismuthine. Qhov no yog vim lub hauv paus atom E nce loj nqes pawg . Nrog rau qhov loj ntawm lub hauv paus atom, E - H daim ntawv cog lus yuav qaug zog. qhov twg E yog nitrogen, phosphorus, arsenic, antimony, bismuth.
Vim li cas tus cwj pwm tseem ceeb txo qis raws lub sijhawm?
Thaum tsiv nrog rau lub sijhawm , nyiam poob electrons txo thiab yog li ntawd, metallic cim txo . Yog li nws tuaj yeem hais tias, nrog rau lub sijhawm ntawm sab laug mus rau sab xis tus cwj pwm tseem ceeb txo qis thaum mus downward, lub cov cim pib nce vim muaj kev nce hauv cov hlau tus cwj pwm.
Pom zoo:
Vim li cas absorbance txo qis hauv photosynthesis?
Lub teeb xiav: Cov txiaj ntsig absorbance yuav txo qis thaum lub sij hawm lub teeb xiav yog absorbed carotenoids thiab chlorophyll b rau photosynthesis. Yog li DCPI yuav txo qis thiab hloov ntawm xiav mus rau tsis muaj xim nyob rau lub sijhawm
Dab tsi feem ntau yog pab pawg ua haujlwm thiab vim li cas cov pab pawg no tseem ceeb?
Cov pab pawg ua haujlwm tau txuas mus rau carbonbackbone ntawm cov organic molecules. Lawv txiav txim siab tus yam ntxwv thiab tshuaj lom neeg reactivity ntawm molecules. Cov pab pawg ua haujlwm tsis tshua muaj kev ruaj ntseg dua li cov pa roj carbon monoxide thiab zoo li yuav koom nrog cov tshuaj tiv thaiv
Pab pawg twg ntawm cov nroj tsuag muaj nplooj thiab stems tab sis tsis muaj tseeb hauv paus?
Bryophytes tsis muaj keeb kwm, nplooj lossis stems. Moss thiab liverwort belongs rau pawg no. Lawv yog cov nroj tsuag tsis muaj paj uas loj hlob hauv clumps. Lawv tsis muaj cag
Qhov nruab nrab ntawm pawg thiab hauv pab pawg txhais li cas?
Muaj ob txoj hauv kev los saib cov ntaub ntawv hais txog cov pab pawg no. Qhov sib txawv ntawm pab pawg qhia tias ob lossis ntau pawg sib txawv li cas, qhov sib txawv hauv pab pawg qhia qhov sib txawv ntawm cov kev kawm uas nyob hauv tib pab pawg. Nyob rau hauv-pab pawg sib txawv tuaj yeem tshwm sim thaum saib ntawm kev tshawb fawb ntawm pab pawg
Qhov twg tuaj yeem ua rau txo qis ntawm lub zog ntawm cov khoom txav?
Momentum ntawm ib yam khoom yog sib npaug rau nws cov huab hwm coj multiplied los ntawm nws tshaj tawm. (Momentum yog vector kom muaj nuj nqis vim qhov nrawm yog vector). Txo qhov loj lossis qhov nrawm yuav txo qis zog. Qee lossis tag nrho ntawm lub zog ntawm ib qho khoom tuaj yeem hloov mus rau lwm yam khoom los ntawm kev sib tsoo nrog nws