Cov txheej txheem:
Video: Kev hloov tshuaj 3 piv txwv yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Piv txwv ntawm tshuaj hloov pauv yog hlawv, ua noj, xeb, thiab rotting. Piv txwv ntawm lub cev kev hloov yog boiling, melting, freezing, thiab shredding. Feem ntau, lub cev kev hloov tuaj yeem thim rov qab, yog tias lub zog nkag. Tib txoj kev uas yuav thim rov qab a tshuaj hloov yog ntawm lwm tus tshuaj tiv thaiv.
Hauv qhov no, 10 cov piv txwv hloov tshuaj lom neeg yog dab tsi?
Kaum piv txwv ntawm kev hloov tshuaj lom neeg yog:
- Hlawv cov thee, ntoo, ntawv, kerosene, thiab lwm yam.
- Tsim cov curd los ntawm mis nyuj.
- Electrolysis ntawm dej los tsim hydrogen thiab oxygen.
- Rusting ntawm hlau.
- Kev tawg ntawm cracker.
- Ua noj ua haus.
- Kev zom zaub mov.
- Germination ntawm noob.
Ib tug kuj yuav nug, 5 yam tshuaj hloov pauv li cas? Yog; cov tshuaj tshiab tsim, raws li pov thawj los ntawm cov xim kev hloov thiab npuas. Qee cov cim qhia ntawm a tshuaj hloov yog a hloov nyob rau hauv cov xim thiab tsim ntawm npuas. Lub tsib tej yam kev mob ntawm tshuaj hloov : xim chage, tsim ib precipitate, tsim ib tug roj, tsw hloov , kub hloov.
Ntxiv mus, kev hloov tshuaj lom neeg piav qhia nrog piv txwv li cas?
Kev hloov tshuaj tshwm sim thaum ib yam khoom sib txuas nrog lwm tus los tsim cov khoom tshiab, hu ua tshuaj synthesis los yog, hloov, tshuaj decomposition rau hauv ob los yog ntau tshaj cov khoom sib txawv. Ib piv txwv ntawm a tshuaj hloov yog cov tshuaj tiv thaiv nruab nrab ntawm sodium thiab dej los tsim sodium hydroxide thiab hydrogen.
Ib qho piv txwv ntawm cov khoom siv tshuaj lom neeg yog dab tsi?
Piv txwv ntawm tshuaj muaj zog suav nrog flammability, toxicity, acidity, reactivity (ntau hom), thiab kub ntawm combustion. Hlau, rau piv txwv , ua ke nrog oxygen nyob rau hauv lub xub ntiag ntawm dej los ua xeb; chromium tsis oxidize (Daim duab 2).
Pom zoo:
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