Video: Dab tsi yog hydrides muab lawv cov kev faib tawm?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hydrides yog cais rau hauv peb pawg loj, nyob ntawm seb cov ntsiab lus twg tus hydrogen bonds rau. Cov peb pawg loj yog covalent, ionic, thiab metallic hydrides . Raws li txoj cai, hydride yog lub npe hu ua tus Tsis zoo ion ntawm hydrogen, H-, kuj hu a hydride ion.
Ntawm no, ntau hom hydrides yog dab tsi?
Peb hom hydrides-saline (ionic), nws yog xim hlau, thiab covalent-tej zaum yuav txawv raws li hom tshuaj daim ntawv cog lus koom nrog.
Ib tug kuj nug, ua li cas koj lub npe hydrides? Cov hydrides ntawm pawg 13 thiab 14 yog covalent ntau dua ionic. Tab sis lawv muaj tib yam npe , tsuas yog boron hydride uas yog lub npe hu ua H + nometal compound. Hauv cov qauv: Sau tus npe ntawm cov hlau ua raws li " hydride ".
Piv txwv.
| LiH | Lithium hydride |
|---|---|
| SnH4 | Tin hydride |
Yog li ntawd, dab tsi yog hydrides piav nrog piv txwv?
Hydrides . Hydride , hauv cov ntsiab lus yooj yim, tau hais tias yog anion ntawm hydrogen. Nws yog ib qho tshuaj sib xyaw uas cov hydrogen atoms nthuav tawm nucleophilic, yooj yim lossis txo cov khoom. Qee qhov nrov tshaj plaws piv txwv suav nrog dej (H2O), methane (CH4thiab ammonia (NH3).
Dab tsi yog saline hydrides?
Saline hydrides (tseem hu ua ionic hydrides los yog pseudohalides) yog cov sib xyaw ua ke ntawm hydrogen thiab cov hlau nquag tshaj plaws, tshwj xeeb tshaj yog nrog cov alkali thiab alkaline-lub ntiaj teb hlau ntawm pawg ib thiab ob lub ntsiab lus. Hauv pab pawg no, hydrogen ua raws li cov hydride ion (H-).
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