1. Puas yog hexafluoride lom? Sulfur hexafluoride yog physiologically inert thiab suav hais tias yog ib qho inert roj hauv pharmacology. Tab sis thaum nws muaj impurities xws li SF4, nws dhau los ua tshuaj lom. W…

2023-08-21 IB

Kawm ntxiv

Cov roj chlorine yog cov pa roj carbon monoxide, thiab nws yog cov pa phem heev nrog cov ntxhiab tsw ntxhiab tsw. Thaum nqus tau cov roj chlorine yuav ua rau cov tsos mob me me lom hauv tib neeg lub cev. Qee tus neeg mob yuav muaj mob…

2023-08-11 IB

Kawm ntxiv

1. Qhov txawv ntawm CO2 thiab CO yog dab tsi? 1. Cov qauv molecular sib txawv, CO thiab CO22. Molecular mass yog txawv, CO yog 28, CO2 yog 443. txawv flammability, CO yog flammable, CO2 tsis fl...

2023-08-11 IB

Kawm ntxiv

1. Cov txiaj ntsig ntawm nitric oxide yog dab tsi? Nitric oxide tuaj yeem nthuav cov hlab ntsha, ua kom cov ntshav khiav, txo cov ntshav siab, txhim kho cov ntshav ncig, thiab tseem muaj cov tshuaj tiv thaiv kab mob, tiv thaiv oxidant, ...

2023-08-04 IB

Kawm ntxiv

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