Video: Dab tsi yog cov ions ntawm tooj liab?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Tooj (2+) yog ib ion ntawm tooj liab nqa ib tug nqi ob npaug. Nws muaj lub luag haujlwm ua tus cofactor. Nws yog divalent hlau cation, a tooj liab cation thiab monoatomic dication.
5.3 Hais txog Element.
| Lub Npe Lub Npe | Tooj |
|---|---|
| Atomic Number | 29 |
Tsis tas li ntawd, dab tsi yog qhov feem ntau tooj liab ion?
: nug.
Tsis tas li ntawd, vim li cas tooj liab tsim ib 2+ ion? Tsis muaj p plhaub electrons sab nraud txhais tau hais tias d plhaub electrons tuaj yeem ua raws li valence, thiab cov hlau tuaj yeem oxidize ntau txoj kev. Hauv zinc nws ll ntxiv ib tug thib ob electron rau 4s. Txais tos rau chemistry. Yog li, tooj liab yeej yog ua muaj 2 valence electrons nws tuaj yeem poob, muab nws lub xeev oxidized ntawm 2 +.
Ib yam li ntawd, tib neeg nug, dab tsi yog qhov ionic nqi ntawm tooj liab?
Roman numeral II qhia peb txog hluav taws xob nqi , los yog oxidation xeev, ntawm cov tooj liab ion, uas yog +2. Qhov no txhais tau tias txhua tus tooj liab atom poob ob lub electrons los tsim cov ion Cu +2. Oxygen yog ib yam uas tsis yog-hlau thiab yuav yeej ib txwm nce ob electrons, muab nws lub xeev oxidation -2.
Qhov txawv ntawm Cu thiab cu2 + yog dab tsi?
- Cu yog ib qho nruab nrab atom uas tus naj npawb ntawm protons thiab electrons sib npaug. -- Cu2+ yog ib qho cation tsim los ntawm poob 2 electrons. Raws li tus naj npawb proton ntau dua, nuclear Charge rau Cu²? yuav ntau thiab atomic loj ntawm Cu²? txo qis, Ionization muaj peev xwm ntau dua.
Pom zoo:
Cov qauv siv lead ua ntawm tooj liab sulfate yog dab tsi?
Copper(II) sulfate Names Structure Crystal structure Orthorhombic (anhydrous, chalcocyanite), space group Pnma, oP24, a = 0.839 nm, b = 0.669 nm, c = 0.483 nm. Triclinic (pentahydrate), qhov chaw pab pawg P1, aP22, a = 0.5986 nm, b = 0.6141 nm, c = 1.0736 nm, α = 77.333 °, β = 82.267 °, γ = 72.567 ° Thermochemist
Qhov loj ntawm 3.5 moles ntawm tooj liab yog dab tsi?
Qhov loj ntawm Cu hauv grams tuaj yeem tau los ntawm kev sib npaug ntawm qhov loj hauv amu nrog Avogadro tus lej. Yog li ntawd, qhov loj ntawm 3.5 moles ntawm Cu yog 3.69 × 10 − 22 grams 3.69 × 10 − 22g ua
Dab tsi yog qhov txawv ntawm Biot tooj thiab Nusselt tooj?
Cov lus teb tsis ntev los no. Biot tooj siv thermal conductivity ntawm lub cev (tsis yog kua), whereas Nusselt tooj siv thermal conductivity ntawm cov kua. Qhov sib txawv ntawm Biot thiab Nusselt tus naj npawb yog nyob rau hauv lub ntsiab lus ntawm tshav kub hloov coefficient, uas yog txhais raws li: h = -k (dT / dn) w / (Tw-T0)
Yuav ua li cas cov khoom siv caj ces hauv txhua lub xov tooj tshiab tsim los ntawm kev faib tawm ntawm tes sib piv nrog cov khoom siv caj ces hauv lub xov tooj qub?
Mitosis tshwm sim nyob rau hauv ob lub nuclei uas zoo tib yam rau thawj nucleus. Yog li, ob lub hlwb tshiab tsim tom qab kev faib tawm ntawm tes muaj tib yam khoom siv caj ces. Thaum lub sij hawm mitosis, chromosomes condense los ntawm chromatin. Thaum saib nrog lub microscope, chromosomes pom nyob rau hauv lub nucleus
Vim li cas cov kab mob Gram tsis zoo tshwm liab liab thaum cov kab mob Gram zoo pom ntshav liab?
Gram zoo hlwb stain ntshav vim lawv cov peptotidoglycan txheej yog tuab txaus, txhais tau tias tag nrho cov kab mob Gram zoo yuav khaws lawv cov stain. Gram tsis zoo hlwb stain liab vim lawv muaj ib tug nyias peptidoglycan phab ntsa, thiab lawv yuav tsis khaws ib yam ntawm cov ntshav stain los ntawm crystal violet