2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Arsenic yog cov khoom siv tshuaj nrog lub cim As thiab tus lej atomic 33. Arsenic tshwm sim hauv ntau cov zaub mov, feem ntau yog ua ke nrog sulfur thiab hlau, tab sis kuj yog ib qho ntshiab elemental siv lead ua. Arsenic yog metalloid.
Vim li cas arsenic boiling point thiab melting point?
Arsenic siv lead ua. …Ceeb Toom: Qhov boiling point yog qhov qis dua qhov melting point vim arsenic hloov theem ncaj qha los ntawm cov khoom mus rau cov roj nyob rau hauv ib txwm atmospheric siab. Nws yuav tsum muaj qhov siab ntawm 28 atm txhawm rau txhawm rau hloov theem ntawm cov khoom mus rau cov kua, yog li qhov kub siab dua.
Vim li cas arsenic thiaj li melting point?
Melting point los ntawm nitrogen mus rau arsenic nce & los ntawm arsenic nws txo mus rau bismuth vim hais tias cov pab pawg raws li qhov luaj li cas ntawm lub cov ntsiab lus tsub kom lub siab nyiam ntawm cov ntsiab los tsim peb covalent bonds nce (inert khub effect).
YPuas selenium npub lossis ci?
Amorphous selenium yog xim liab, hauv daim ntawv hmoov, lossis dub, hauv vitreous, lossis iav, daim ntawv. Daim ntawv ruaj khov tshaj plaws ntawm lub caij, crystalline hexagonalselenium, yog xim hlau grey, thaum crystalline monoclinic selenium yog xim liab.
Vim li cas selenium thiaj li hu ua lub hli?
Nws yog Berzelius uas pom selenium hauv xyoo 1817, ua ib qho impurity hauv sulfuric acid. Tellurium twb tau tshawb pom lawm, thiab muab lub npe los ntawm Greek lo lus rau lub ntiaj teb, yog li nws hu ua selenium siv lo lus Greekrau hli, selene.
Pom zoo:
Puas yog lub melting point ntawm titanium?
Titanium yog cov khoom siv tshuaj nrog lub cim Ti thiab tus lej atomic 22. Nws qhov hnyav atomic yog 47.867 ntsuas hauv d altons. Nws yog ib qho kev hloov pauv hlau nrog cov xim nyiaj, tsis tshua muaj siab, thiab lub zog siab, tiv taus corrosion hauv dej hiav txwv, aqua regia, thiab chlorine.
Puas yog cov dab dab dab dab dab dab dab dab dab dab dab dab?
Myth: Ib tug dab tshos tsis yog neeg ncaj ncees yog tiasnws haum yog. Fact: Tu siab, qhov no yog ib lo lus tsis tseeb uas tau raug perpetuated los ntawm aversive trainers. Txawm hais tias haum rau lub caj dab kom zoo khawb rau hauv cov tawv nqaij rhiab nyob ib ncig ntawm lub caj dab, uas ua rau muaj kev puas tsuaj loj rau cov thyroid, esophagus, thiab trachea.
Dab tsi yog kev xav ntawm autonomists dab tsi yog qhov kev xav ntawm kev zoo nkauj ntawm kev coj ncaj ncees?
Kev lig kev cai, muaj ob txoj haujlwm tawm tsam kev xav txog kev coj ua raws li kev cai lij choj ntawm kev ntsuas kev ncaj ncees ntawm kev kos duab: 'kev coj ncaj ncees kev ncaj ncees Ethics lossis kev coj ncaj ncees yog ib ceg ntawm kev xav uas "
Hydrogens melting point yog dab tsi?
Hydrogen yog cov khoom siv tshuaj nrog lub cim H thiab tus lej atomic 1. Hydrogen yog lub teeb tshaj plaws. Ntawm cov txheej txheem hydrogen yog cov pa roj ntawm diatomic molecules muaj cov qauv H₂. Nws yog xim tsis muaj ntxhiab, tsis muaj ntxhiab, tsis muaj tshuaj lom, thiab kub kub heev.
Dab tsi yog qhov melting point ntawm dichloroacetic acid?
Dichloroacetic acid, qee zaum hu ua bichloroacetic acid, yog cov tshuaj sib xyaw nrog cov mis CHCl ₂COOH. Nws yog ib qho kua qaub, ib qho analogue ntawm acetic acid, uas 2 ntawm 3 hydrogen atoms ntawm methyl pawg tau hloov los ntawm chlorine atoms.
