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Video: Dab tsi yog qhov tseeb ntawm cov khoom ntawm cov kua qaub?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Qhov twg yog qhov tseeb ntawm acid zog , raws li tau piav qhia los ntawm Boyle: qaub saj, corrosive, hloov litmus los ntawm liab mus rau xiav.
Hauv qhov no, dab tsi yog cov khoom ntawm cov kua qaub?
Cov kua qaub yog cov ionic compounds uas tsim cov hydrogen ions zoo (H+) thaum yaj hauv dej. Cov kua qaub saj qaub, ua hluav taws xob thaum yaj hauv dej, thiab hnov mob nrog hlau los tsim cov roj hydrogen. Qee qhov ntsuas qhov sib txuas, xws li litmus, tuaj yeem siv los kuaj xyuas kua qaub . Cov kua qaub tig xiav litmus ntawv liab.
Tom qab, lo lus nug yog, dab tsi yog tsib lub zog ntawm cov kua qaub? Sau koj hnub yug mus ntxiv:
| Khoom | Acid | Puag |
|---|---|---|
| Saj | Qab Zib (vinegar) | Qab zib (baking soda) |
| Tsis hnov tsw | Nquag kub hnyiab | Feem ntau tsis muaj ntxhiab tsw (tshwj tsis yog NH3!) |
| Kev ntxhib los mos | nplaum | Slipper |
| Reactivity | Feem ntau hnov mob nrog hlau los ua H2 | React nrog ntau cov roj thiab roj |
Kuj paub yog, dab tsi yog 3 yam khoom ntawm cov kua qaub?
Cov kua qaub
- Aqueous daws ntawm acids yog electrolytes, txhais tau tias lawv ua hluav taws xob tam sim no.
- Acids muaj qaub saj.
- Acids hloov xim ntawm qee cov kua qaub-puag qhia.
- Acids teb nrog cov hlau nquag ua kom muaj cov pa roj hydrogen.
- Acids reacts nrog bases los tsim ib tug ntsev compound thiab dej.
Dab tsi yog 4 lub zog ntawm cov kua qaub thiab cov hauv paus?
Ntawm hauv paus ? Cov kua qaub saj qaub, hnov mob nrog hlau, hnov mob nrog carbonates, thiab tig xiav litmus daim ntawv liab. Bases saj iab, hnov ntxhiab, tsis txhob hnov qab nrog carbonates thiab tig liab litmus daim ntawv xiav.
Pom zoo:
Koj puas ntxiv cov kua qaub rau hauv lub hauv paus lossis lub hauv paus rau cov kua qaub?
Ntxiv cov kua qaub ua kom cov concentration ntawm H3O + ions hauv cov tshuaj. Ntxiv ib lub hauv paus txo cov concentration ntawm H3O + ions hauv cov tshuaj. Cov kua qaub thiab lub hauv paus zoo li cov tshuaj tiv thaiv. Yog hais tias lub hauv paus yog ntxiv rau cov kua qaub, cov tshuaj yuav tsis acidic thiab txav mus rau nruab nrab ntawm pH nplai
Dab tsi yog qhov txawv ntawm cov kua qaub thiab cov hauv paus ntawm pH nplai?
Distinguishing ntawm acids thiab bases. Keydifference: Acids thiab bases yog ob hom tshuaj corrosive. Txhua yam khoom uas muaj pH tus nqi nruab nrab ntawm 0 txog 7 yog suav tias yog acidic, qhov apH tus nqi ntawm 7 txog 14 yog lub hauv paus. Cov kua qaub yog cov ioniccompounds uas sib cais hauv dej los tsim cov hydrogen ion (H +)
Dab tsi yog qhov txawv ntawm qhov pom tseeb qhov loj thiab qhov ntsuas qhov ntsuas qhov tseeb?
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