2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Locality: Broken Hill Ore Deposit, New South Wales, Australia . Loj: 2.4 x 2.2 x 2.0 cm. Loellingite, kuj spelled löllingite, yog ib tug hlau arsenide ntxhia nrog formula FeAs2. Nws feem ntau pom muaj txuam nrog arsenopyrite (FeAsS) los ntawm qhov uas nws nyuaj rau kev paub qhov txawv.
Safflorite siv rau dab tsi?
Safflorite tau pom nyob rau xyoo 1817 thiab muaj npe nyob rau xyoo 1835 los ntawm Johann Friedrich Lub Yim Hli Breithaupt los ntawm German, "Safflor" vim nws tau siv hauv kev tsim cov zaffer, ib qho tsis huv oxide ntawm cob alt siv los ua xim.
Rammelsbergite siv rau dab tsi?
Chemistry: NiAs2, Nickel Arsenide. Siv: Raws li ib qho me me ntawm nickel thiab arsenic thiab raws li cov khoom siv ntxhia.
hom pob zeb twg yog Skutterudite?
Neeg thiab pob zeb
Skutterudite yog a cob alt arsenide (CoAs 3), thiab cob alt-nickel arsenide (CoNiAs 3-x) ntxhia nrog cov nqi sib txawv ntawm nickel thiab hlau. Nws muaj npe tom qab lub nroog ntawm "Skotterud," Norway. Cov pob zeb hauv av tshwm sim raws li qhov sib txawv ntawm cov pob zeb nrog octahedral siv lead ua.
Dab tsi yog qhov nyuaj ntawm arsenopyrite?
Arsenopyrite yog hlau arsenic sulfide (FeAsS). Nws yog ib qho nyuaj (Mohs 5.5-6) nws yog xim hlau, opaque, steel grey rau cov nyiaj dawb ntxhia nrog cov ntsiab lus siab ntawm 6.1. Thaum yaj nyob rau hauv nitric acid, nws tso tawm elemental sulfur.
Pom zoo:
Qhov khoom nyob rau pem hauv ntej ntawm lub lens diverging nyob qhov twg?
Teb: Dav hlau daim iav Dav Hlau Daim iav Rau lub teeb rays tawm lub dav hlau daim iav, lub lub kaum sab xis ntawm kev xav sib npaug ntawm lub kaum sab xis ntawm qhov xwm txheej. … Daim duab tsim los ntawm daim iav dav hlau yog ib txwm virtual (lub ntsiab lus tias lub teeb rays tsis yog los ntawm daim duab), upright, thiab ntawm tib lub duab thiab loj npaum li cov khoom nws yog reflecting.
Qhov chaw ncig tebchaws nyob hauv bhagalpur nyob qhov twg?
Bhagalpur faib lub zos yog ib pawg tswj hwm thaj chaw ntawm Bihar xeev ntawm Is Nrias teb, nrog Bhagalpur ua thawj coj hauv paus chaw haujlwm. Raws li xyoo 2005, qhov kev faib muaj xws li Bhagalpur koog tsev kawm ntawv, thiab Banka koog tsev kawm ntawv thiab nyob rau ntawm ntug dej ntawm Ganga River.
Kev tsis ncaj ncees nyob qhov twg yog qhov hem rau kev ncaj ncees nyob txhua qhov chaw?
Martin Luther King tau hais tias: “Kev tsis ncaj ncees nyob txhua qhov chaw yog kev hem thawj rau kev ncaj ncees nyob txhua qhov chaw. Peb raug ntes nyob rau hauv ib tug inescapable network ntawm kev sib nrig sib pab, khi nyob rau hauv ib lub tsoos tsho ntawm txoj hmoo.
Qhov twg yog qhov tsis txaus ntseeg nyob qhov twg?
Yuav muaj ob lub cev tsis zoo nyob rau hauv lub midbrain. Lawv yog symmetrically positioned, ib tug nyob rau ntawm ob sab ntawm lub midline ntawm lub hlwb, thiab lawv tsim ob lub pob nyob rau hauv lub posterior nto ntawm lub paj hlwb nyob rau hauv qab ntawm lub superior colliculi.
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.
