Video: Tus txheej txheem ceev ntawm iav yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov iav ntom ntom Nws txawv ntawm txhua hom thiab thaj tsam ntawm 2000 txog 8000 kg / m3 (rau kev sib piv, los ntawm tsawg ntom dua aluminium rau ntau ntom dua hlau) ntawm txheem tej yam kev mob. Flint iav tuaj yeem ua tau ntau dua li cov yas iav vim flint iav muaj cov hmoov lead, uas yog ib qho khoom siv ntom ntom.
Kuj paub yog, qhov nruab nrab ntom ntawm iav yog dab tsi?
Cov iav ntom ntom Nws txawv ntawm txhua hom thiab thaj tsam ntawm 2000 txog 8000 kg / m3 (rau kev sib piv, los ntawm tsawg ntom dua aluminium rau ntau ntom dua hlau) ntawm tus qauv. Flint iav tuaj yeem ua tau ntau dua li cov yas iav vim flint iav muaj cov hmoov txhuas, uas yog ib qho khoom siv ntom ntom.
Ib tug kuj yuav nug, ua li cas koj pom qhov ntom ntawm iav? Siv cov ntsuas ntim ntawm sab ntawm lub iav , sau lub ntim tshiab. Tshem tawm 10ml ntawm lub ntim tshiab. Qhov no yuav muab peb lub ntim ntawm daim ntawm iav . Qhov ntom sib npaug qhov loj ntawm cov iav muab faib los ntawm lub ntim.
Yog li ntawd, qhov ceev ntawm iav hauv g ml yog dab tsi?
Ib qho piv txwv ntawm iav tuaj yeem tawg lossis kho kom muaj qhov loj peb xaiv, tab sis nws ceev yuav ib txwm yog 2.70 g /cm3 ntawm 20 ° C, yog li cov qauv forensic tuaj yeem siv los txheeb xyuas qhov iav lub raj mis uas nws tau tawg.
Dab tsi yog qhov ntom ntawm iav marbles?
2.52 g / cm³
Pom zoo:
Dab tsi yog txheej txheem spontaneous thiab non-spontaneous txheej txheem?
Cov txheej txheem spontaneous yog ib qho uas tshwm sim yam tsis muaj kev cuam tshuam ntawm sab nraud. Ib txoj kev uas tsis yog tshwm sim yuav tsis tshwm sim yog tias tsis muaj kev cuam tshuam ntawm sab nraud
Tus txheej txheem ntawm resizing tus lej yog dab tsi thaum koj muab faib los ntawm ib feem?
Teb: Scaling yog tus txheej txheem ntawm resizing tus lej los ntawm ib feem uas ntau dua los yog tsawg dua 1
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
Dab tsi yog qhov txawv ntawm instantaneous thiab nruab nrab ceev dab tsi yog qhov piv txwv loj tshaj ntawm kev ceev ceev?
Qhov nruab nrab ceev yog qhov ceev nruab nrab ntawm lub sijhawm. Instantaneous ceev yuav yog qhov ceev txhua qhov muab tam sim ntawd hauv lub sijhawm ntawd, ntsuas nrog lub ntsuas ntsuas lub sijhawm
Cov txheej txheem twg yog txheej txheem endothermic?
Cov txheej txheem endothermic yog ib qho txheej txheem uas xav tau lossis nqus lub zog los ntawm nws qhov chaw nyob ib puag ncig, feem ntau yog ua kom sov. Nws yuav yog cov txheej txheem tshuaj, xws li dissolving ammonium nitrate hauv dej, lossis cov txheej txheem ntawm lub cev, xws li melting ntawm cov dej khov nab kuab