2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Thaum lub sijhawm decomposition ntawm H2O2 kom muab oxygen, 48 g O2 yog tsim ib feeb ntawm ib lub sijhawm. Tus nqi tsim dej ntawm qhov no yog (a) 0.75 mol min (b) 1.5 mol min (c) 2.25 mol min!
Yuav ua li cas thaum H2O2 decomposes?
Hydrogen peroxide muaj ib daim ntawv cog lus oxygen-oxygen. … Thaum nws daim ntawv cog lus oxygen-oxygen tawg, hydrogen peroxide decomposes rau hauv dej thiab oxygen. Thaum qhov no tshwm sim, nws tso tawm cov dawb radicals uas muaj zog heev nrog rau lwm yam tshuaj.
H2O2 tso oxygen li cas?
Ib daim ntawv ua npuas ncauj thaum cov npuas ntawm cov pa ntim rau hauv cov kua lossis cov khoom. Hauv qhov no, cov pa oxygen tsim tawm thaumhydrogen peroxide tawg rau hauv oxygen thiab dej ntawm kev sib cuag nrog catalase, ib qho enzyme pom hauv daim siab. Enzymes yog cov protein molecules tshwj xeeb uas ua rau muaj tshuaj lom neeg.
Kev txiav txim ntawm H2O2 yog dab tsi?
Lub decomposition ntawm H2O2 yog sawv cev raws li: H2O2 → H2O + O (Slow) (O) + (O) → O2 (fast).
Yuav ua li cas cov khoom tsim thaum H2O2 decomposes?
Hydrogen peroxide, H2O2, yog cov kua tsis muaj xim uas sib tov nrog dej thiab tau siv dav los ua tshuaj tua kab mob thiab tshuaj tua kab mob. tshuaj dawb huv. Nws tsis ruaj khov thiab decomposes (tawg) maj mam tsim dej thiab oxygen gas.
Pom zoo:
Lub sijhawm kuv lub sijhawm dawb lossis thaum kuv lub sijhawm dawb?
yog li, qhov no txhais tau tias "thaum kuv lub sijhawm dawb" tsis siv ntauthiab koj muab "hauv kuv lub sijhawm dawb" ntau dua nyob rau qhov kawg ntawm kab lus. Piv txwv li: Kuv tau taug kev tus dev thaum kuv lub sijhawm dawb.
Lub sijhawm nyob qhov twg ntawm lub sijhawm teem sijhawm?
kab kab rov tav ntawm lub rooj ntu ntu yog hu ua ntu ntu. Lub sijhawm nyob rau ntawm lub sijhawm nyob qhov twg? Ib lub sijhawm yog kab kab rov tav ntawm lub rooj ntu ntu. Muaj xya lub sij hawm nyob rau hauv lub sij hawm ntawm lub sij hawm, nrog txhua tus pib ntawm sab laug.
Lub sijhawm photosynthesis oxygen yog hloov zuj zus los ntawm dej los ntawm kev pab?
Cov txheej txheem photosynthesis cuam tshuam nrog kev tawg ntawm cov dej molecules rau hauv hydrogen thiab oxygen nyob rau hauv lub hnub ci yog hu ua photolysisntawm dej. Muaj ntau cov as-ham koom nrog hauv cov tshuaj tiv thaiv zoo li chlorine thiab manganese.
Lub sijhawm photophosphorylation cov pa oxygen tsim los ntawm?
Nyob rau hauv cyclic photophosphorylation, cov electrons rov qab los rau chloroplast molecules, thaum nyob rau hauv lub non-cyclic photophosphorylation, kev sib cais ntawm dej muab cov electrons rau chloroplast thiab tsim oxygen raws li los ntawm khoom.
Ntawm lub sijhawm lub sijhawm lub atomic loj?
Lub atomic mass ntawm ib lub caij yog qhov nruab nrab loj ntawm cov atoms ntawm ib lub ntsiab ntsuas hauv atomic mass unit(amu, tseem hu ua d altons, D). Lub atomic huab hwm coj yog qhov hnyav nruab nrab ntawm tag nrho cov isotopes ntawm lub caij ntawd, nyob rau hauv uas qhov loj ntawm txhua isotope yog sib npaug los ntawm kev nplua nuj ntawm cov isotope.
