Video: Dab tsi yog qhov tsis yog hlau muab piv txwv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ans: Hydrogen, hydrogen, chlorine, fluorine, carbon, nitrogen , arsenic, phosphorus, selenium yog cov piv txwv ntawm cov hlau tsis yog hlau.
Ua li no, dab tsi yog cov hlau tsis yog?
Cov ntsiab lus uas feem ntau xav txog lwm yam nonmetals muaj xws li hydrogen, carbon, nitrogen, phosphorus, oxygen, sulfur, thiab selenium.
cov hlau muab piv txwv li cas? Alloys yog cov sib tov, qhov tsawg kawg yog ib feem ntawm qhov sib tov yog hlau. Piv txwv ntawm cov hlau yog aluminium, tooj liab, hlau, tin, kub , txhuas, nyiaj, titanium, uranium, thiab zinc. Lub npe nrov alloys muaj xws li tooj liab thiab hlau.
Ib sab ntawm no, dab tsi yog 22 tsis yog hlau?
Nyob rau hauv niaj hnub lub sij hawm lub sij hawm muaj 22 uas tsis yog-hlau uas muaj 11 gases, 1 kua thiab 10 khoom. Bromine tshwm sim nyob rau hauv lub xeev ntawm cov kua thiab hydrogen, nitrogen , oxygen , chlorine thiab lwm yam muaj nyob hauv cov ntawv gaseous. Tab sis carbon, sulfur, phosphorous, iodine thiab lwm yam khoom tsis yog hlau.
Puas yog yas tsis yog hlau?
Lub sij hawm hlau thiab tsis yog - hlau yog siv rau cov khoom. Yas tsis yog ib qho khoom tab sis ib qho polymer uas muaj qhov sib txawv tsis yog - hlau xws li carbon, hydrogen, oxygen, nitrogen thiab lwm yam yas tuaj yeem yooj yim deformed, thaum lwm tus tsis tuaj yeem thiab tawg thaum yuam kom khoov. Cov no yog hu ua thermosetting yas.
Pom zoo:
Dab tsi yog cov nyhuv tshuaj ntawm hluav taws xob muab qee qhov piv txwv ntawm cov nyhuv tshuaj?
Ib qho piv txwv ntawm cov tshuaj muaj zog hauv cov hluav taws xob tam sim no yog electroplating. Hauv cov txheej txheem no, muaj cov kua dej uas muaj hluav taws xob dhau mus. qhov no yog ib qho piv txwv ntawm kev siv tshuaj lom neeg hauv hluav taws xob tam sim no
Dab tsi yog qhov txawv ntawm qhov kev txwv tsis kawg thiab kev txwv ntawm infinity?
Daim ntawv ceeb toom yuav ua li cas thaum peb tab tom cuam tshuam nrog qhov kev txwv tsis kawg, nws yog qhov ntsug asymptote. Kev txwv ntawm infinity yog asymptotes ib yam nkaus, txawm li cas los xij, cov no yog kab rov tav asymptotes peb tab tom cuam tshuam nrog lub sijhawm no. Cov kev txwv ntawm infinity muaj teeb meem qhov twg "txwv li x mus txog infinity lossis tsis zoo infinity" yog nyob rau hauv cov cim
Dab tsi yog qhov txawv ntawm instantaneous thiab nruab nrab ceev dab tsi yog qhov piv txwv loj tshaj ntawm kev ceev ceev?
Qhov nruab nrab ceev yog qhov ceev nruab nrab ntawm lub sijhawm. Instantaneous ceev yuav yog qhov ceev txhua qhov muab tam sim ntawd hauv lub sijhawm ntawd, ntsuas nrog lub ntsuas ntsuas lub sijhawm
Dab tsi yog qhov txawv ntawm microevolution thiab macroevolution Dab tsi yog qee qhov piv txwv ntawm txhua tus?
Microevolution vs. Macroevolution. Piv txwv ntawm cov kev hloov microevolutionary no yuav suav nrog kev hloov ntawm hom xim lossis loj. Macroevolution, piv txwv li, yog siv los hais txog kev hloov pauv ntawm cov kab mob uas tseem ceeb txaus uas, dhau sijhawm, cov kab mob tshiab yuav raug suav tias yog hom tshiab nkaus xwb
Dab tsi yog qhov dimension muab peb piv txwv?
Muab peb yam piv txwv. Ib qhov loj me yog txhua yam khoom ntawm ib qho khoom lossis qhov system uas tuaj yeem ntsuas tau. Piv txwv xws li ntev, loj, lub sij hawm, hardness, ceev, zog, thiab hais txog