Ethylene oxide yog ib qho organic compound nrog cov tshuaj formula C2H4O, uas yog cov tshuaj lom carcinogen thiab yav tas los siv los ua fungicides. Ethylene oxide yog nplaim taws thiab tawg, thiab tsis yog ...

2023-08-04 IB

Kawm ntxiv

1. Hydrogen ua dab tsi? Hydrogen muaj ntau yam tseem ceeb siv thiab ua haujlwm. Nws tuaj yeem tsis tsuas yog siv los ua cov khoom siv raw thiab cov roj tshwj xeeb, tab sis kuj tseem siv tau rau hauv kev lag luam biomedicine los ua haujlwm ...

2023-07-28 IB

Kawm ntxiv

1. Cov roj ammonia liquefied li cas? Kev kub siab: qhov kub tseem ceeb ntawm ammonia roj yog 132.4C, dhau qhov kub ntawm ammonia roj tsis yooj yim rau liquefy. Tab sis nyob rau hauv cov xwm txheej kub siab, ammo…

2023-07-28 IB

Kawm ntxiv

1. Vim li cas thiaj siv kua nitrogen ua cov tub yees? 1. Vim tias qhov kub ntawm cov kua nitrogen nws tus kheej qis heev, tab sis nws qhov xwm txheej yog qhov me me, thiab nws nyuaj rau cov kua nitrogen mus rau cov tshuaj lom neeg ...

2023-07-20 IB

Kawm ntxiv

1. Vim li cas argon yog ib qho inert element? Lub npe hu ua "inert inert gas" txhais tau hais tias cov pa roj no ruaj khov heev, muaj qhov tsis muaj zog, thiab tsis yooj yim rau kev sib xyaw nrog cov pa roj. Qhov tseeb, "inertia" ntawm ...

2023-07-20 IB

Kawm ntxiv

1. Cov helium puas tuaj yeem tsim tau? Yog lawm, tam sim no muaj plaub txoj kev npajCondensation method: Condensation method yog siv nyob rau hauv kev lag luam kom rho helium los ntawm natural gas. Cov txheej txheem o…

2023-07-12 IB

Kawm ntxiv

1. Yuav ua li cas yog silane? (1) Magnesium silicide txoj kev: hnov ​​mob cov hmoov sib xyaw ntawm silicon thiab magnesium hauv hydrogen ntawm li 500 ° C, thiab hnov ​​mob cov tshuaj magnesium silicide nrog ammonium chloride hauv ...

2023-07-12 IB

Kawm ntxiv

1. Qhov sib txawv ntawm Hydrogen Peroxide thiab Isopropyl cawv tsis zoo ib yam. Hydrogen peroxide yog ib qho oxidant, thiab nws txoj cai tua kab mob yog tua kab mob los ntawm oxidizing cell daim nyias nyias ib…

2023-07-06

Kawm ntxiv

1.Dab tsi yog argon-hydrogen sib tov? Argon-hydrogen sib xyaw roj yog siv dav siv los tiv thaiv roj, uas yog siv dav hauv vuam, txiav, thermal spraying thiab lwm yam kev lag luam. Qhov ratio ntawm…

2023-07-06

Kawm ntxiv

1. Vim li cas silane muaj tshuaj lom? Tej zaum yuav muaj kev phom sij los ntawm kev nqus, nqus los yog nqus los ntawm daim tawv nqaij. Tshwj xeeb yog flammable, kom deb ntawm tshav kub, sparks thiab qhib nplaim taws. Nws volatilized pos huab yog irritati…

2023-06-27 IB

Kawm ntxiv

1. Cov kua hydrogen ua li cas? Kev tsim cov hydrogen los ntawm txoj kev siv roj av Siv cov tshuaj anthracite los yog coke ua cov khoom siv los ua cov dej vapor ntawm qhov kub thiab txias kom tau cov pa roj (C + H2O → CO + H2 - hea…

2023-06-27 IB

Kawm ntxiv

Ib. Puas yog kua argon txaus ntshai? Ua ntej tshaj plaws, kua argon yog cov xim tsis muaj xim, tsis muaj ntxhiab, tsis muaj ntxhiab, tsis muaj tshuaj lom inert gas, uas tsis muaj teeb meem rau tib neeg lub cev thiab ib puag ncig. Txawm li cas los xij, ntawm kev cia siab siab…

2023-06-20 IB

Kawm ntxiv