Cov txheej txheem:
Video: Cov tshuaj twg yog alkalis?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Alkalis yog caustic tshuaj uas yaj nyob rau hauv dej los tsim ib qho kev daws teeb meem nrog pH ntau dua 7. Cov no suav nrog ammonia; ammonium hydroxide; calcium hydroxide thiab oxide; poov tshuaj; poov tshuaj hydroxide thiab carbonate; sodium; sodium carbonate, hydroxide, peroxide thiab silicates; thiab trisodium phosphate.
Tib neeg kuj nug, dab tsi yog alkalis?
Piv txwv ntawm cov Alkalis
- Sodium hydroxide, NaOH.
- Potassium hydroxide, KOH.
- Calcium hydroxide, Ca (OH)2
- Aqueous ammonia, NH3 (aq)
Tsis tas li ntawd, dab tsi yog cov tshuaj alkaline tshaj plaws? Sodium Bicarbonate (Baking Soda) Tej zaum qhov feem ntau feem ntau alkaline cov khoom pom nyob rau hauv nruab nrab lub tsev, sodium bicarbonate yog ib tug kuj tsis muaj zog puag, hnyav nyob rau hauv ib tug pH ntawm 8.3.
Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog cov tshuaj formula ntawm alkaline?
Ib qho pH hauv qab 7 yog acidic, thaum twg pH saum 7 yog hu ua alkaline . Cov dej molecules muaj tshuaj formula H2O. Txawm li cas los xij, cov molecules no muaj peev xwm sib cais me ntsis hauv kev daws, hauv H+ thiab OH– (hydroxide) ions.
Cov khoom siv hauv tsev dab tsi yog alkaline?
Muaj zog alkalis xws li cov tshuaj ntxuav tes, tshuaj dawb thiab lub qhov cub ntxuav, yog corrosive thiab tuaj yeem rhuav tshem cov proteins uas tsim tawm. cov khoom xws li roj thiab plaub hau. Baking hmoov muaj cov kua qaub thiab ib qho alkali (sodium bicarbonate).
Pom zoo:
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