Video: Puas yog Hlau ci los yog npub?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov tsos thiab hardness ntawm cov ntaub ntawv
| Khoom / Khoom | Qhov tshwm sim | Hardness |
|---|---|---|
| Hlau | ci iab | nyuaj heev |
| Coal | Npuag | Tsis nyuaj heev |
| Sulfur | Npuag | Tsis nyuaj heev |
| Aluminium | ci iab | nyuaj heev |
Tom qab ntawd, ib tug kuj yuav nug, yog coal ci los yog npub?
Bituminous thee tshwm ci iab thiab du thaum koj xub pom nws, tab sis saib ze dua thiab koj yuav pom nws muaj txheej txheej. Subbituminous: cov khoom siv thee yog xim dub thiab npub (tsis yog ci iab ), thiab muaj cov nqi cua sov siab tshaj lignite.
Tsis tas li ntawd, cov hlau twg tsis ci? Pottasium yog hlau uas ua tsis ci nto.
Yog li ntawd, yog tooj liab ci los yog npub?
Ntshiab tooj liab hlau yog ci thiab ci iab , tab sis oxide npub.
Cov hlau puas ci?
Hlau yog ci iab vim hais tias lawv muaj ntau dawb (piv txwv li delocalized) electrons uas tsim ib tug huab ntawm heev mobile tsis zoo them electrons rau thiab hauv qab tus du. hlau nto nyob rau hauv cov ntaub ntawv zoo tagnrho. Yog li ntawd, tsis muaj ib cheeb tsam nyob rau hauv lub hlau uas yog qhov tsis zoo them ntau dua li lwm tus.
Pom zoo:
Puas yog Phosphorus yog hlau lossis tsis yog hlau?
Phosphorus yog cov hlau tsis muaj hlau uas nyob hauv qab nitrogen hauv pawg 15 ntawm lub sijhawm. Cov khoom no muaj nyob rau hauv ntau hom, uas yog dawb thiab liab yog qhov zoo tshaj plaws paub. Dawb phosphorus yog twv yuav raug hu ntau exciting ntawm ob
Puas yog hlau yog hlau muaj zog?
Hlau yog cov khoom siv tshuaj thiab cov hlau. Nws yog qhov thib ob feem ntau hlau nyob hauv ntiaj teb, thiab feem ntau siv hlau. Nws ua rau ntau lub ntiaj teb lub hauv paus, thiab yog plaub feem ntau ntawm lub ntiaj teb lub pob zeb. Cov hlau siv ntau heev vim nws muaj zog thiab pheej yig
Puas yog npib tsib xee ci los yog npub?
Nickel yog ib qho nyuaj, malleable, ductile hlau. Nws yog ci iab nyiaj hlau nrog me ntsis kub tinge uas yuav siv sij hawm ahigh polish thiab resists corrosion. Lub caij ua oxidize, tab sis txheej oxide tiv thaiv kev ua haujlwm ntxiv ntawm kev ua haujlwm Nws yog tus neeg xyuas pib ntawm hluav taws xob thiab cua sov
Puas yog Tin ci los yog npub?
Alpha-tin yog nkig, npub, powdery, semimetallic daim ntawv ntawm tin. Nws yog tsim thaum lub tin ntshiab heev txias. Beta-tin yog ib txwm ci, mos, conductive, metallic daim ntawv
Puas yog alkali hlau thiab alkaline ntiaj teb hlau zoo ib yam?
Valance: Tag nrho cov alkali hlau muaj ib qho hluav taws xob nyob rau hauv lawv lub plhaub sab nraud thiab tag nrho cov alkaline ntiaj teb hlau muaj ob sab electrons. Yuav kom ua tiav cov kev teeb tsa muaj txiaj ntsig zoo, cov hlau alkali yuav tsum poob ib lub tshuab hluav taws xob (valence yog "ib"), thaum alkaline ntiaj teb hlau yuav tsum tshem tawm ob lub electrons (valence yog "ob")