Video: Yuav ua li cas thaum koj sib tov zinc thiab iodine?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Zinc hmoov yog ntxiv rau kev daws ntawm iodine hauv ethanol. Ib qho exothermic redox cov tshuaj tiv thaiv tshwm sim , tsim zinc iodide , uas tuaj yeem tau txais los ntawm evaporating cov kuab tshuaj. Qhov kev sim tuaj yeem txuas ntxiv los qhia qhov decomposition ntawm ib qho chaw rau hauv nws cov ntsiab lus los ntawm electrolysing zinc iodide.
Yog li ntawd, zinc iodide siv rau dab tsi?
Zinc iodide feem ntau yog siv li ib qho x-ray opaque penetrant nyob rau hauv industrial radiography los txhim kho qhov sib piv ntawm kev puas tsuaj thiab cov khoom tsis zoo.
Tsis tas li ntawd, yog vim li cas iodine yog txwv tsis pub reactant nyob rau hauv zinc iodide? Hauv lwm lo lus, thaum tag nrho cov iodine tau reacted, tseem yuav muaj zinc hlau sab laug. Iodine yog cov txwv reactant . Qhov ntxiv ci, xim nyiaj xim zinc yuav raug tshem tawm ntawm cov tshuaj tiv thaiv; nws cov huab hwm coj yuav tsis suav nrog hauv kev suav ntawm cov qauv empirical. Peb xav tau cov qauv molecular ntawm zinc iodide.
Tsuas yog li ntawd, koj yuav ua li cas zinc iodide?
Koj yuav synthesize zinc iodide los ntawm kev sib xyaw elemental zinc thiab iodine hauv dej (uas dissolves lub zinc iodide cov khoom thiab tso cai rau cov tshuaj tiv thaiv mus rau ntawm tus nqi nrawm dua). Koj yuav saib xyuas cov reactant uas tshuav (tsis txwv).
Muaj pes tsawg grams zinc reacts?
53g 2.99 ib g 3.65 g 3.52 g 12) Moles of Zinc reacted : Atomic loj ntawm zinc = 65.39 g Grams ntawm zinc reacted = 0.53 g Moles ntawm zinc reacted = 0.53 g 65.39 g =.
Pom zoo:
Yuav ua li cas thaum koj sib tov tooj liab thiab sulfur?
Thaum rhuab ua ke, tooj liab thiab sulfur sib xyaw ua ib qho sulfide ntawm tooj liab. Qhov ntau sulfurvaporizes tsim gaseous sulfur, uas khiav tawm ntawm lub crucible. Thaum cov roj sulfur kub ncav cuag huab cua, nws reacts nrog oxygen los tsim gaseous oxides ntawm leej faj (tsuas yog sulfur dioxide, SO2)
Yuav ua li cas tshwm sim thaum aqueous tov ntawm sodium sulphate thiab barium chloride sib tov?
Thaum cov tshuaj aqueous ntawm sodium sulphate reacts nrog ib tug aqueous tov ntawm barium chloride, precipitate ntawm barium sulphate yog tsim thiab tom qab cov tshuaj tiv thaiv tshwm sim. ii. Yog hais tias cov reactants nyob rau hauv lub cev muaj zog, ces cov tshuaj tiv thaiv yuav tsis tshwm sim. Nws yog ib qho kev hloov pauv ob npaug nrog rau nag lossis daus
Yuav ua li cas tshwm sim thaum koj sib tov lead nitrate thiab sodium iodide?
Yog hais tias ob qho ntawm cov ions nyob rau hauv lub resulting sib tov sib xyaw ua ib qho insoluble compound los yog precipitate, ib qho kev tshwm sim tshwm sim. Thaum cov xim tsis muaj xim ntshiab ntawm cov hmoov lead nitrate (Pb(NO3)2) ntxiv rau cov xim tsis muaj xim ntawm sodium iodide (NaI), cov xim daj ntawm cov hmoov lead iodide (PbI2) tshwm
Yuav ua li cas thaum koj sib tov sodium chloride thiab potassium nitrate?
Yuav ua li cas sodium chloride thiab potassium nitrate teb ua ke? Yog li, koj yuav tau txais tsuas yog ib homogeneous sib tov ntawm ob ntsev, muaj cov Na +, Cl-, K + thiab NO3- ions hauv dej. Yog tias koj rhaub cov khoom sib tov ntawm ob cov ntsev, tsuas yog cov nitrate yuav decompose rau nitrite nrog cov evolution ntawm oxygen
Thaum twg koj yuav tsum siv correlation thiab thaum twg koj yuav tsum siv yooj yim linear regression?
Regression feem ntau yog siv los tsim cov qauv / qhov sib npaug los kwv yees cov lus teb tseem ceeb, Y, los ntawm cov txheej txheem kwv yees (X) sib txawv. Kev sib raug zoo feem ntau yog siv los ua kom sai thiab ua kom luv luv cov kev taw qhia thiab lub zog ntawm kev sib raug zoo ntawm ib pawg ntawm 2 lossis ntau tus lej sib txawv