Video: Cov tshuaj tiv thaiv dab tsi yog calcium carbonate calcium oxide carbon dioxide?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Calcium carbonate yog ua kom sov kom txog thaum nws nkag mus rau hauv thermal decomposition tsim cov calcium oxide thiab carbon dioxide. Cov calcium oxide (unslaked txiv qaub) yog yaj hauv dej tsim calcium hydroxide (limewater). Bubbling carbon dioxide los ntawm qhov no ua ib qho kev ncua ntawm calcium carbonate.
Yog li, hom tshuaj tiv thaiv dab tsi yog calcium oxide thiab carbon dioxide?
Calcium oxide yog ib tug dawb crystalline khoom nrog ib tug melting point ntawm 2572 ° C. Nws yog tsim los ntawm cua sov limestone, coral, hiav txwv shells, los yog chalk, uas yog tsuas yog CaCO3, tsav tawm. carbon dioxide . Qhov no tshuaj tiv thaiv yog thim rov qab; calcium oxide yuav teb nrog carbon dioxide ua form calcium carbonate.
Tsis tas li ntawd, yuav ua li cas thaum calcium carbonate reacts nrog carbon dioxide? Calcium carbonate react nrog carbon dioxide thiab dej los tsim calcium hydrogen carbonate . Cov tshuaj tiv thaiv ua tiav ntawm chav tsev kub.
Ntxiv mus, hom tshuaj tiv thaiv dab tsi yog CaCO3 CaO co2?
DECOMPOSITION : AB → A + B Piv txwv: 2 H2O → 2 H2 + O2 CaCO3 → CaO + CO2 Decompositions feem ntau yog qhov sib txawv (rov qab) ntawm kev sib xyaw ua ke, thiab lawv feem ntau koom nrog oxidation thiab txo qis (tab sis tsis nyob hauv qhov piv txwv kawg).
Thaum koj kub calcium carbonate ib qho khoom dawb nrog cov mis CaCO3 nws tawg mus rau hauv cov khoom calcium oxide CaO thiab carbon dioxide gas co2?
Thermal decomposition Thaum cua sov 840 ° C, calcium carbonate decomposes, tso tawm cov pa roj carbon dioxide thiab tawm hauv qab calcium oxide -a dawb khoom . Calcium oxide yog hu ua txiv qaub thiab yog ib qho ntawm 10 cov tshuaj uas tsim tawm txhua xyoo los ntawm thermal decomposition ntawm limestone.
Pom zoo:
Vim li cas cov tshuaj tiv thaiv kev zom zaub mov hu ua hydrolysis cov tshuaj tiv thaiv?
Thaum lub sij hawm zom mov, piv txwv li, decompositionreactions zom cov zaub mov loj rau hauv cov me me los ntawm kev ntxiv cov dej molecules. Hom tshuaj no hu ua hydrolysis. Raws li dej absorbs heatenergy, qee lub zog yog siv los rhuav tshem hydrogenbonds
Lub npe rau ib yam khoom tsim nyob rau hauv cov tshuaj tiv thaiv tshuaj yog dab tsi?
Cov tshuaj tiv thaiv tshuaj yog cov txheej txheem uas cov atoms tam sim no nyob rau hauv cov tshuaj pib rov ua kom muab cov tshuaj sib xyaw tshiab tam sim no hauv cov tshuaj tsim los ntawm cov tshuaj tiv thaiv. Cov tshuaj pib ntawm cov tshuaj tiv thaiv tshuaj hu ua reactants, thiab cov tshuaj tshiab uas tshwm sim hu ua cov khoom
Thaum koj kub calcium carbonate ib qho khoom dawb nrog cov mis CaCO3 nws tawg los ua cov khoom calcium oxide CaO thiab carbon dioxide gas co2?
Thaum tshav kub kub tshaj 840 ° C, calcium carbonate decomposes, tso cov pa roj carbon dioxide thiab tawm hauv qab calcium oxide - cov khoom dawb. Calcium oxide hu ua txiv qaub thiab yog ib qho ntawm 10 cov tshuaj uas tsim tawm txhua xyoo los ntawm thermal decomposition ntawm limestone
Cov tshuaj tiv thaiv dab tsi yog qhov tshuaj tiv thaiv neutralization?
Neutralization yog ib hom tshuaj tiv thaiv nyob rau hauv uas muaj zog acid thiab muaj zog puag react nrog ib leeg los tsim dej thiab ntsev
Dab tsi yog tshuaj lom neeg cov tshuaj tiv thaiv thiab cov tshuaj tiv thaiv lub cev?
Qhov sib txawv ntawm cov tshuaj tiv thaiv lub cev thiab cov tshuaj tiv thaiv tshuaj yog muaj pes tsawg leeg. Hauv cov tshuaj tiv thaiv tshuaj, muaj kev hloov pauv ntawm cov tshuaj hauv nqe lus nug; nyob rau hauv ib qho kev hloov ntawm lub cev muaj qhov sib txawv ntawm qhov tsos, tsis hnov tsw, los yog cov duab yooj yim ntawm cov qauv ntawm cov teeb meem yam tsis muaj kev hloov pauv hauv cov ntsiab lus