Video: Dab tsi yog cov kev siv ntawm kev sib koom ua ke?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib tug loj kev siv ntawm kev sib koom ua ke yog lawv siv raws li catalysts, uas pab hloov tus nqi ntawm cov tshuaj tiv thaiv. Qee qhov nyuaj hlau catalysts, piv txwv li, ua lub luag haujlwm tseem ceeb hauv kev tsim cov polyethylene thiab polypropylene.
Tom qab ntawd, ib tug kuj yuav nug, dab tsi yog qhov tseem ceeb ntawm kev sib koom ua ke?
Kev sib koom ua ke yog siv los ua catalysts rau ntau cov txheej txheem kev lag luam thiab muaj ntau daim ntawv thov hauv kev tshuaj xyuas zoo / ntau yam tshuaj hauv kev tshuaj xyuas chemistry . Qhov ntawm kev sib koom ua ke muaj qhov tseem ceeb nyob rau hauv biological system, lub kev sib koom ua ke ua lub luag haujlwm tseem ceeb hauv metallurgy thiab tshuaj.
Kuj Paub, kev sib koom ua ke ua haujlwm li cas? Lub hauv paus atoms lossis ion thiab cov atoms pub dawb suav nrog thawj kev sib koom tes kheej kheej. Kev sib koom tes hais txog " koom tes covalent bonds" (dipolar bonds) nruab nrab ntawm ligands thiab lub hauv paus atom hlau complexes yog tsim zoo irreversibly thiab ntau yog khi ua ke los ntawm bonds uas muaj zog heev.
koj txhais li cas los ntawm kev sib koom ua ke?
Txhais ntawm Coordination Compound D . Kho tshiab Lub Xya hli ntuj 11, 2019. A kev sib koom ua ke yog a compound muaj ib lossis ntau dua koom tes bonds, uas yog ib qho kev sib txuas ntawm ib khub ntawm electrons uas ob qho tib si electrons tau pub los ntawm ib qho ntawm cov atoms. Hauv lwm lo lus, nws yog a compound uas muaj a kev sib koom tes complex.
Vim li cas hlau complexes tseem ceeb?
Ib qho ntawm feem ntau tseem ceeb Cov khoom ntawm cov hlau hlau yog lawv lub peev xwm los ua Lewis acids uas tsim complexes nrog ntau yam ntawm Lewis hauv paus. Thib ob, ntau cov khoom lag luam catalysts yog hlau complexes , thiab xws li catalysts tsis tu ncua ua ntau dua tseem ceeb raws li ib txoj hauv kev los tswj reactivity.
Pom zoo:
Dab tsi yog lub tswv yim ntawm kev txhawb nqa ntawm kev sib cais ntawm kev sib deev?
Kev txhawb zog yog cov txheej txheem los ntawm kev xaiv ntuj tsim kom muaj kev sib cais ntawm kev sib deev. Kev txhawb zog tuaj yeem tshwm sim raws li hauv qab no: Thaum ob pawg neeg uas tau khaws cia sib nrug, rov qab los rau hauv kev sib cuag, qhov kev sib cais ntawm cov menyuam yaus yuav ua tiav lossis tsis tiav. Yog tias nws ua tiav, speciation tau tshwm sim
Dab tsi pov thawj siv cov duab ntawm lub dav hlau sib koom ua pov thawj cov khoom geometric?
Cov ntaub ntawv pov thawj uas siv cov duab ntawm lub dav hlau sib koom ua pov thawj geometric zog yog hu ua trigonometric
Dab tsi yog qhov sib txawv ntawm qhov sib txawv ntawm cov kab sib txuas thiab ntau qhov sib piv?
6. (2 lub cim) Qhov sib txawv ntawm cov kab sib txuas (kev sib piv) thiab ntau qhov sib piv yog dab tsi? Cov kab sib xyaw ua ke yog npaj sib piv; uas yog, tshwj xeeb txhais tau tias yog ua ke nyob rau hauv ntau txoj kev thiab contrasted nrog rau lwm yam kev sib txuas ntawm txhais tau tias
Dab tsi yog qhov sib txawv ntawm cov kab lus sib npaug thiab qhov sib npaug sib npaug?
Cov kab lus sib npaug muaj qhov muaj txiaj ntsig zoo ib yam tab sis tau nthuav tawm nyob rau hauv ib hom ntawv sib txawv uas siv cov khoom ntawm cov lej xws li ax + bx = (a + b) x yog cov kab lus sib npaug. nruj me ntsis, lawv tsis yog 'sib npaug', yog li peb yuav tsum siv 3 kab sib luag hauv 'sib npaug' es tsis yog 2 raws li qhia ntawm no
Dab tsi yog cov lej thiab cov lej rational Yuav ua li cas cov ntsiab lus kos rau ntawm lub dav hlau sib koom tes?
Raws li peb tau hais, cov ntsiab lus ntawm lub dav hlau sib koom ua ke yog sawv cev raws li (a, b), qhov twg a thiab b yog tus lej lej. Rational cov lej yog cov lej uas tuaj yeem sau ua feem, p / q, qhov p thiab q yog tus lej. Peb hu rau x-coordinate ntawm lub point thiab peb hu b tus y-coordinate ntawm lub point