Yam tshuaj twg sublimates nh4cl lossis nacl?

Cov txheej txheem:

Yam tshuaj twg sublimates nh4cl lossis nacl?
Yam tshuaj twg sublimates nh4cl lossis nacl?
Anonim

Sodium Chloride yog cov khoom ionic thiab muaj cov ntsiab lus melting siab thiab kub kub. Yog li nws tsis tuaj yeem hloov pauv hauv vapor theem tsuas yog ntawm cov roj siab li no nws tsis tuaj yeem sublime. Ammonium chloride, khoom thiab iodine undergo sublimation uas ntawm cua sov yam tsis tuaj hauv lub xeev ua kua ncaj qha hloov mus rau lub xeev gaseous.

Nh4cl puas yog sublimate?

Ammonium chloride zoo li sublime thaum cua sov tab sis ua tau decomposes rau hauv ammonia thiab hydrogen chloride gas.

Puas yog nacl yog sublimation tshuaj?

Sodium chloride yog cov khoom ionic thiab muaj cov ntsiab lus kub yaj thiab kub kub. Yog li ntawd, nws tsis tuaj yeem hloov pauv hauv vapor theem tsuas yog ntawm atmospheric siab yog li nws tsis tuaj yeem sublimate.

Yuav ua li cas yog sublimative tshuaj?

Sublimation yog qhov hloov pauv ntawm lub xeev los ntawm cov khoom mus rau cov roj yam tsis tau dhau los ntawm lub xeev cov kua. "Dry ice," los yog cov pa roj carbon dioxide, yog ib yam khoom uas sublimes ntawm atmospheric pressures. Cov dej khov qhuav yog txias heev (-78 ° C) thiab yog li siv los ua cov khoom txias rau cov khoom xws li ice cream uas yuav tsum tau khov thaum xa khoom.

Cov tshuaj hauv qab no twg tuaj yeem ua tau zoo?

Cov tshuaj uas paub zoo uas yooj yim nkag tau muaj xws li iodine(pom hauv qab), dej khov qhuav (qhia hauv qab), menthol, thiab camphor. Sublimation yog qee zaus siv hauv chav kuaj ua ib txoj hauv kev rau kev ntxuav cov khib nyiab, piv txwv li, nrog caffeine.

Pom zoo:

Nthuav cov khoom
Lub sijhawm elongation ntawm kev txhais lus uncharged trnas txav mus rau?
Nyeem ntxiv

Lub sijhawm elongation ntawm kev txhais lus uncharged trnas txav mus rau?

Peptide daim ntawv cog lus; uncharged tRNA txav mus rau qhov E site & tom qab tawm ntawm ribosome; lub mRNA tau hloov pauv 3 lub hauv paus mus rau sab laug, ua rau tRNA bearing dipeptide hloov mus rau P site P site P-site (rau peptidyl) yog qhov thib ob khi qhov chaw rau tRNA hauv ribosome.

Dab tsi yog asbestiform fibers?
Nyeem ntxiv

Dab tsi yog asbestiform fibers?

Raws li siv hauv daim ntawv tshaj tawm no, lo lus asbestiform fibers suav nrog fibers uas muaj lub zog zoo thiab yoog raws, ruaj khov, cov qauv saum npoo tsis muaj qhov tsis xws luag, thiab ntau lwm yam khoom tau piav qhia tom qab. Kev lag luam zoo asbestos yog ib qho piv txwv ntawm asbestiform fiber.

Colleen dewhurst tuag li cas?
Nyeem ntxiv

Colleen dewhurst tuag li cas?

Dewhurst tuag rau hnub Thursday ntawm mob qog noj ntshav ntawm nws lub tsev hauv New York suburb ntawm Lewisboro, hais Tom Viola, tus kws tshaj lij rau lub koomhaum uas nws ua haujlwm, Tus Ua Yeeb Yam Equity. Txawm hais tias ntau phau ntawv sau npe Dewhurst hnub nyoog li 65, nws yog 67, hais tias nws tus khub ntev, Ken Marsolais.