2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Talc yog qhov softest thiab pob zeb diamond yog qhov nyuaj tshaj. Txhua lub pob zeb tuaj yeem khawb tsuas yog cov hauv qab nws ntawm qhov ntsuas.
Qhov twg yog cov khoom softest?
Raws li Mohs nplai, talc, tseem hu ua soapstone, yog cov ntxhia pob zeb zoo tshaj plaws; nws yog tsim los ntawm ib pawg ntawm cov ntaub ntawv tsis muaj zog txuas nrog uas zoo li plam sib nrug nyob rau hauv siab. Thaum nws los txog rau cov hlau, cov kws tshawb fawb sim ntsuas qhov nyuaj ntawm cov ntsiab lus tseeb.
Dab tsi yog ob qho dej ntxhia tshaj plaws?
Txhua qhov kev xav tau cov zaub mov haum hauv qhov ntsuas no, txij li Talc yog cov pob zeb uas paub zoo tshaj plaws thiab pob zeb diamond nyuaj tshaj plaws.
Lub 10 minerals yog:
- Talc.
- Gypsum.
- calcite.
- Fluorite.
- Apatite.
- Feldspar.
- Quartz.
- YTopaz.
Vim li cas talc soft?
Lub softness ntawm talc tau txais txiaj ntsig rau nws lub cev thiab tshuaj lom neeg. Talc yog tsim los ntawm cov qauv ntawv nrog cov ntawv cog lus zoo meej cleavages thiab tsis muaj zog heev ntawm cov nplooj ntawv. Vim cov qauv zoo li no, cov ntawv talc tuaj yeem yooj yim plam ntawm ib leeg. Cov yam ntxwv ntawm talc no ua rau nws softness.
pob zeb softest yog dab tsi?
Talc yog cov ntxhia mos tshaj plaws hauv ntiaj teb. Mohs scale ntawm hardness siv talc raws li nws pib-point, nrog ib tug nqi ntawm 1. Talc yog ib tug silicate (zoo li ntau yam ntawm lub ntiaj teb no cov minerals ntau tshaj), thiab ntxiv rau silicon thiab oxygen,muaj magnesium thiab dej npaj rau hauv cov ntawv hauv nws cov qauv siv lead ua.
Pom zoo:
Puas yog halite yog cov ntxhia silicate?
A silicate mineral yog cov ntxhia uas muaj kev sib xyaw ntawm 2 lub ntsiab lus Silicon thiab Oxygen. … Halite yog ib qho ntxhia. Nws muaj cov tshuaj muaj pes tsawg leeg ntawm NaCl (sodium chloride) thiab feem ntau yog siv rau lub rooj ntsev, yog li lub npe menyuam yaus 'pob zeb ntsev'.
Nyob hauv nws cov hmoov ua cov ntxhia hematite?
Hematite yog qhov tseem ceeb tshaj plaws ntawm cov hlau ore ntawm hlau Hlau ore yog cov khoom siv raw siv los ua npua hlau, uas yog ib qho ntawm cov khoom siv tseem ceeb los ua steel- 98% ntawm cov mined hlau ore yog siv los ua hlau. https://en.
Yuav ua li cas cov ntxhia crystallized ntawm qhov kub qis tshaj?
minerals uas crystallize ntawm qhov kub qis tshaj (quartz, muscovite, alkali feldspar) yog nplua nuj nyob rau hauv Si thiab Al; pob zeb uas muaj cov minerals no yog felsic nyob rau hauv muaj pes tsawg leeg (granite, rhyolite). Yuav ua li cas ntawm cov pob zeb tsis pom kev hauv qab no muaj cov zaub mov uas crystallize ntawm qhov kub thiab txias?
Qhov twg yog hais txog qhov kaj los yog qhov tsaus ntuj ntawm qhov ntxoov ntxoo?
Vim yog hais txog qhov kaj los yog qhov tsaus ntuj ntawm cov xim. Lub teeb xim yog tint. … Xim tsaus yog hu ua ntxoov ntxoo. Lub kaw lus hu ua dab tsi los txiav txim qhov kaj thiab qhov tsaus ntuj ntawm cov xim? Hue txawv ib xim ntawm lwm tus thiab piav qhia siv cov npe xim xws li ntsuab, xiav, liab, daj, thiab lwm yam.
Qhov twg tag nrho cov nqi hluav taws xob nyob ntawm qhov kev siv nyiaj siab tshaj plaws yog qhov twg?
marginal utility is zero. Tag nrho cov nqi hluav taws xob yog siab tshaj thaum marginal utility yog xoom. Qhov no yog vim muaj ntau txoj cai ntawm kev txo qis marginal utility uas hais tias tus neeg siv khoom noj ntau thiab ntau qhov zoo, qhov ntxiv rau tag nrho cov nqi hluav taws xob poob.
