Video: Dab tsi hlau koj yuav tsum tsis txhob ntxiv rau acid?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Zinc tshem tawm tooj liab hlau, uas ua raws li acatalyst. ( tooj liab , nyiaj , kub thiab platinum) yuav tsis hnov mob nrog dilute acid. Lawv tsis tuaj yeem tshem tawm hydrogen los ntawm cov hlau tsis yog hlau.
Yog li ntawd, dab tsi hlau yuav tsis hnov mob nrog acids?
Kub, nyiaj, thiab tooj liab ua tsis hnov mob nrog qaug zog kua qaub . Kub yog heev unreactive tab sis reactive nrog heev tshwj xeeb kua qaub . Qhov ntawd kuj muaj tseeb ntawm cov nyiaj thiab tooj liab. Platinum coj zoo li kub, aqua regia yog qhov kua qaub nws yog feem ntau reactive nrog.
Tsis tas li ntawd, cov hlau ua li cas nrog cov kua qaub? Thaum ib acid reacts nrog hlau , ntsev thiab hydrogen yog tsim: kua qaub + hlau → ntsev + hydrogen Ib qho piv txwv: nitric kua qaub + calcium → calciumnitrate + hydrogen Cov ntsev uas yog tsim nyob ntawm qhov twg kua qaub thiab qhov twg hlau react.
Ntawm no, cov hlau twg tsis hnov mob nrog acid los tsim hydrogen?
Ib txhia hlau yog li ntawd unreactive lawv tsis mob nrog dilute kua qaub tag nrho, eg. tooj, nyiaj thiab kub. Teb: Cu, Pt, Au hlau tsis tsim hydrogen Thaum nws ntxiv rau dilute hydrochloric kua qaub ”.
Yuav ua li cas thaum koj muab poov tshuaj rau hauv acid?
Potassium . Thaum twg poov tshuaj yog ntxiv rau dej, cov hlau melts thiab ntab. Nws txav mus nrawm heev rau saum npoo av. Hydrogen ignites instantly.
Pom zoo:
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