Video: 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?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Thermal decomposition
Thaum twg 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.
Ib yam li ntawd, thaum calcium carbonate yog rhuab Nws puas decompose rau calcium oxide thiab carbon dioxide?
1 Teb. Calcium carbonate yuav decompose los ua carbon dioxide thiab calcium oxide . Carbonate compounds yuav decompose thaum cua sov . Calcium carbonate muaj 1: 1 ratio vim calcium cov ntaub ntawv ib +2 ion carbonate muaj -2 nqi.
Ib yam li ntawd, puas yog CaCO3 CaO co2 cov tshuaj tiv thaiv redox? Teb thiab piav qhia: Tsis yog, CaCO3 → CaO + CO2 tsis yog ib qho cov tshuaj tiv thaiv redox . Peb paub qhov no los ntawm kev txheeb xyuas cov lej oxidation rau cov ntsiab lus sib txawv hauv cov tshuaj tiv thaiv mus
Tsis tas li, 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).
Puas yog cua sov CaCO3 los ua CaO thiab co2 endothermic lossis exothermic?
Koj yuav tsum tau muab cov cua sov kom tawg calcium carbonate rau hauv calcium oxide thiab carbon dioxide . Nyob rau hauv ib qho kev tshwm sim thaum tshav kub yog muab los ua cov tshuaj tiv thaiv, xws li cov tshuaj tiv thaiv hu ua endothermic cov tshuaj tiv thaiv zoo li photosynthesis ..
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Cov pa roj carbon dioxide puas muaj qhov kub thiab txias?
78.46°C dej
Cov tshuaj tiv thaiv dab tsi yog calcium carbonate calcium oxide carbon dioxide?
Calcium carbonate tau kub siab kom txog thaum nws dhau los ua thermal decomposition los tsim calcium oxide thiab carbon dioxide. Cov calcium oxide (unslaked txiv qaub) yog yaj hauv dej los tsim calcium hydroxide (limewater). Bubbling carbon dioxide los ntawm qhov no ua ib qho kev ncua ntawm calcium carbonate