Cov txheej txheem:

Puas yog hlau yog hlau muaj zog?
Puas yog hlau yog hlau muaj zog?

Video: Puas yog hlau yog hlau muaj zog?

Video: Puas yog hlau yog hlau muaj zog?
Video: siab tsis yog hlau - sonie thoj (cover) 2024, Hlis ntuj nqeg
Anonim

Hlau yog chemical element thiab a hlau . Nws yog qhov thib ob feem ntau hlau 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 yog muaj zog thiab pheej yig.

Ua li no, puas yog hlau zoo?

Hlau yog ib yam khoom muaj txiaj ntsig zoo kawg. Nws tseem tsawg dua li pob zeb tsis tau, piv rau ntoo lossis tooj liab, muaj zog heev. Yog tias ua kom sov zoo, hlau Nws kuj yog ib qho yooj yim toshape rau ntau hom, nrog rau kev ua kom zoo, siv cov cuab yeej yooj yim.

Tsis tas li ntawd, hom hlau twg yog hlau? Ntshiab hlau yog xim nyiaj hlau uas ua rau kub thiab hluav taws xob zoo. Hlau yog heev reactive toexist ib leeg ces nws tsuas tshwm sim lawm nyob rau hauv lub ntiaj teb crust li hlau ore, xws li hematite, magnetite, thiabsiderite.

Hauv qhov no, puas yog hlau muaj zog dua hlau?

Nws yog nyuaj dua thiab muaj zog tshaj hlau . Hlau nrog ntau tshaj 1.7% feem pua carbon los ntawm qhov hnyav isnamed cam khwb cia hlau.

Cov hlau hnyav tshaj plaws yog dab tsi?

Lub Hardest Metals nyob rau hauv lub ntiaj teb no

  1. Tungsten (1960-2450 MPa) Tungsten yog ib qho nyuaj tshaj plaws uas koj yuav pom hauv qhov xwm txheej.
  2. Iridium (1670 MPa) Ib yam li tungsten, Iridium yog ib yam tshuaj elementthat qhia tau hais tias tej yam tshwm sim ntawm kev kub ceev thiab ib tug siab tev taus ntawm hightemperatures.
  3. Hlau.
  4. Osmium (3920-4000 MPa)
  5. Chromium (687-6500 MPa)
  6. Titanium (716 txog 2770 MPa)

Pom zoo: