2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Key Takeaway. Kev tsim cov ntawv cog lus qis dua tag nrho lub zog ntawm lub cev, lub zog yuav tsum tau ua kom sib cais cov atoms lossis ions, thiab muaj qhov kev pom zoo nyob deb.
Lub hom phiaj ntawm kev tsim tshuaj lom neeg yog dab tsi?
Tshuaj tiv thaiv tuav cov molecules ua ke thiab tsim kev sib txuas ib ntus uas tseem ceeb rau lub neej. Hom tshuaj tiv thaiv xws li covalent, ionic, thiab hydrogen bonds thiab London dispersion rog.
Kev tsim cov tshuaj lom neeg muaj feem cuam tshuam li cas?
Tshuaj tiv thaiv yog lub zog ntawm kev nyiam uas khi atoms ua ke. Bonds yog tsim thaum valence electrons, cov electrons nyob rau sab nraud hluav taws xob "plhaub" ntawm ib lub atom, sib cuam tshuam. … Yog li ntawd, cov electrons zoo li yuav pom nyob ze ntawm ib qho atom feem ntau ntawm lub sijhawm.
Yuav ua li cas rau atoms thaum lawv tsim tshuaj tiv thaiv?
Atoms tsim cov tshuaj tiv thaiv rau ua kom lawv cov khoom siv hluav taws xob sab nraud ruaj khov. … Ib daim ntawv cog lus ionic, qhov twg ib lub atom tseem ceeb pub ib lub tshuab hluav taws xob rau lwm tus, tsim thaum ib lub atom ruaj khov los ntawm kev poob nws cov electrons sab nraud thiab lwm cov atoms ruaj khov (feem ntau yog los ntawm kev sau nws lub plhaub valence) los ntawm kev txais cov electrons.
Qhov twg ntawm cov hauv qab no cuam tshuam rau qhov loj ntawm lub lattice zog rau ib qho ionic compound xaiv txhua yam uas siv?
Ob yam tseem ceeb uas ua rau muaj qhov loj ntawm lub lattice zogyog tus nqi thiab lub vojvoog ntawm cov ions sib txuas.
Pom zoo:
Cov tshuaj tiv thaiv dab tsi rau kev txhaj tshuaj tiv thaiv thib ob?
Cov tshuaj tiv thaiv COVID-19 thib ob yog dab tsi? Cov kev mob tshwm sim feem ntau tom qab koob thib ob yog qhov mob ntawm qhov chaw txhaj tshuaj (92.1% tshaj tawm tias nws kav ntev dua 2 teev); qaug zog (66.4%); mob lub cev lossis leeg nqaij (64.
Puas yog lub cev tiv thaiv kab mob hauv lub cev puas tsim cov tshuaj tiv thaiv?
Lub cev tiv thaiv kab mob tau txais, nrog kev pab los ntawm lub cev hauv lub cev, tsim cov hlwb (tshuaj tiv thaiv kab mob) los tiv thaiv koj lub cev los ntawm ib tus neeg invader tshwj xeeb. Cov tshuaj tiv thaiv no yog tsim los ntawm cov hlwb hu ua B lymphocytes tom qab lub cev tau raug rau cov neeg ua phem.
Vim li cas cov tshuaj tiv thaiv combustion yog cov tshuaj tiv thaiv oxidation?
Kev sib xyaw ua ke ib txwm ua rau muaj oxygen lossis huab cua. … Hauv combustion cov tshuaj tiv thaiv oxygen yog ua ke nrog cov roj qhov chaw feem ntau carbon thiab hydrogen raws li ua rau carbon dioxide thiab dej thiab yog li qhov no yog cov tshuaj tiv thaiv oxidation.
Puas kev tiv thaiv txo qis tom qab txhaj tshuaj tiv thaiv covid?
Cov kws tshaj lij tseem tsis tau paub tias kev tiv thaiv yuav kav ntev npaum li cas. Thaum cov kws tshawb fawb tau pom tias cov tshuaj tiv thaiv yuav tiv thaiv tib neeg feem ntau rau thawj ob peb lub hlis tom qab tau txais koob tshuaj thib ob, lawv tsis muaj ntaub ntawv hais txog kev tiv thaiv kab mob mus ntev uas cov tshuaj tiv thaiv no tuaj yeem muab.
Yuav ua li cas cov tshuaj tiv thaiv coagulants tiv thaiv cov ntshav txhaws?
Anticoagulants tseem hu ua ntshav thinners yog cov tshuaj uas siv los kho thiab tiv thaiv cov ntshav txhaws. Lawv cuam tshuam cov txheej txheem kev koom tes hauv kev tsim cov ntshav txhaws thiab ua haujlwm los ntawm kev tsom mus rau cov ntshav txhawsyam xws li thrombin, fibrin, thiab vitamin K.
