Video: Lub mis molecular ntawm chalk yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Chalk yog mos, dawb, ntxeem tau, sedimentary carbonate pob zeb, ib daim ntawv ntawm limestone muaj li ntawm cov ntxhia calcite. Calcite yog ionic ntsev hu ua calcium carbonate los yog CaCO 3 . Cov tshuaj formula rau chalk yog CaCO 3 ( calcium carbonate ) thiab nws qhov hnyav molecular yog 100.0869 amu.
Ntawm no, dab tsi yog qhov molar loj rau chalk?
100,086 g
Tsis tas li ntawd, cov yam ntxwv ntawm chalk yog dab tsi? Chalk yog cov pob zeb uas tsis yog-clastic carbonate sedimentary uas yog daim ntawv ntawm limestone compesed ntawm cov ntxhia calcite. Nws yog mos, nplua-grained thiab yooj yim pulverized. Xim yog dawb-rau-greyish ntau yam ntawm limestone pob zeb. Nws yog tsim los ntawm cov plhaub ntawm cov kab mob me me xws li foraminifera, coccoliths, thiab rhabdoliths.
Kuj tseem paub, dab tsi yog chalk ua niaj hnub no?
Hnub no , sidewalk thiab blackboard chalk yog ua los ntawm gypsum, raws li nws yog ntau dua thiab yooj yim rau kev ua hauj lwm nrog dua chalk . Gypsum, calcium sulfate (CaSO4), tshwm sim nyob rau hauv tuab evaporite txaj.
Lawv ua chalk li cas?
Kev sib xyaw. Cov tshuaj muaj pes tsawg leeg ntawm chalk yog calcium carbonate, nrog me me ntawm silt thiab av nplaum. Nws yog tsim nyob rau hauv lub hiav txwv los ntawm sub-microscopic plankton, uas poob mus rau hauv lub hiav txwv pem teb thiab ces consolidated thiab compressed thaum diagenesis rau hauv. chalk pob zeb.
Pom zoo:
Lub luag haujlwm ntawm CDK yog dab tsi hauv lub cev ua haujlwm ntawm tes tshwj xeeb hauv lub voj voog ntawm tes?
Los ntawm phosphorylation, Cdks teeb liab lub xov tooj ntawm tes uas nws tau npaj kom dhau mus rau theem tom ntej ntawm lub voj voog ntawm tes. Raws li lawv lub npe qhia, Cyclin-Dependent Protein Kinases yog nyob ntawm cyclins, lwm chav kawm ntawm kev tswj hwm cov protein. Cyclins khi rau Cdks, ua kom cov Cdks rau phosphorylate lwm cov molecules
Lub luag haujlwm ntawm carbon nyob rau hauv molecular ntau haiv neeg ntawm lub neej yog dab tsi?
Cov pa roj carbon monoxide yog qhov tsis sib xws hauv nws lub peev xwm los tsim cov loj, complex, thiab ntau hom molecules. Cov proteins, DNA, carbohydrates, thiab lwm yam molecules uas paub qhov txawv ntawm cov khoom muaj sia los ntawm cov khoom siv tsis muaj sia yog txhua tus muaj cov pa roj carbon atoms sib txuas rau ib leeg thiab rau cov atoms ntawm lwm cov khoom
Ob qhov tseem ceeb ntawm lub voj voog ntawm tes yog dab tsi thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Muaj ob theem tseem ceeb hauv lub voj voog ntawm tes. Thawj theem yog interphase thaum lub cell loj hlob thiab replicates nws DNA. Qhov thib ob yog theem mitotic (M-Phase) thaum lub sijhawm cell faib thiab hloov ib daim qauv ntawm nws cov DNA mus rau ob lub hlwb zoo tib yam
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua
Tus qauv qauv yog dab tsi Qhov txawv ntawm tus qauv qauv thiab tus qauv molecular yog dab tsi?
Cov mis mos molecular siv cov cim tshuaj thiab cov ntawv sau npe los qhia cov naj npawb ntawm cov atoms sib txawv hauv cov molecule lossis compound. Ib qho empirical formula muab qhov yooj yim tshaj plaws, tag nrho tus lej piv ntawm atoms hauv ib qho chaw. Cov qauv qauv qhia txog kev sib koom ua ke ntawm cov atoms hauv cov molecule