Video: Vim li cas koj yuav tsum tsis txhob saib ncaj qha ntawm hluav taws kub magnesium?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov hlawv magnesium ribbon tsim lub teeb ntawm kev siv txaus kom ua rau tsis pom kev ib ntus. Zam saib ncaj qha ntawm lub teeb ci. Cov kub ntawm magnesium nyob rau hauv cov huab cua ua rau kub heev uas yuav ua rau kub hnyiab thiab pib combustion nyob rau hauv cov ntaub ntawv flammable.
Ua kom pom qhov no, puas magnesium hlawv nrog nplaim taws?
Thaum lub magnesium hlau kub hnyiab nws reacts nrog oxygen pom nyob rau hauv cov huab cua tsim Magnesium Oxide. Cov nplaim taws muab ib qhov chaw ntawm tshav kub kom cov magnesium hlau atoms tuaj yeem kov yeej lawv lub zog ua kom muaj zog. Oxygen thiab magnesium ua ke nyob rau hauv ib tug tshuaj tiv thaiv los tsim no compound.
Ib yam li ntawd, hom tshuaj tiv thaiv dab tsi yog hlawv magnesium? exothermic tshuaj tiv thaiv
Tsis tas li ntawd, yuav ua li cas yog tias koj saib hlawv magnesium?
Magnesium reacts nrog oxygen los ua ib qho chaw hu ua magnesium oxide. Lub teeb ci tshwm sim vim tias qhov tshuaj tiv thaiv no ua rau muaj cua sov ntau. Ceev faj thaum hlawv magnesium Txawm li cas los xij, vim tias nws tseem ua rau ultra-violet (UV) lub teeb uas tuaj yeem ua rau koj lub qhov muag puas yog koj ntsia nws ntev dhau lawm.
Magnesium kub npaum li cas thaum nws hlawv?
Magnesium tseem yog flammable, kub ntawm qhov kub ntawm kwv yees li 2500 K (2200 ° C, 4000 ° F). Qhov kub ntawm autoignition ntawm magnesium yog kwv yees li 744 K (473 ° C, 883 ° F).
Pom zoo:
Lub hnub ncaj qha thiab tsis ncaj qha cuam tshuam li cas rau qhov kub thiab txias?
Lub hnub ncaj qha los tsoo lub ntiaj teb saum npoo ua rau muaj qhov kub thiab txias dua li lub hnub ci ncaj qha. Lub hnub ci dhau los ntawm huab cua tab sis tsis sov nws. Tsis tas li ntawd, lub teeb lub zog los ntawm lub hnub tsoo cov kua thiab cov khib nyiab ntawm lub ntiaj teb. Lub hnub ci poob sib npaug ntawm lawv txhua tus
Puas yog hluav taws xob them nqi hluav taws xob tsuas yog hluav taws xob lossis yog tus nqi ntawm tag nrho cov atoms?
Tus nqi zoo attracts tus nqi tsis zoo thiab ua rau lwm tus nqi zoo. Puas yog hluav taws xob them nqi hluav taws xob tsuas yog hluav taws xob lossis yog tus nqi ntawm tag nrho cov atoms? Cov nqi hluav taws xob yog cov cuab yeej ntawm tag nrho cov atoms
Puas yog hluav taws kub ib txwm muaj hluav taws kub?
Incendiary tsis yog ib txwm arson, arson muaj hom phiaj ua rau lub cev raug mob / khoom puas tsuaj
Lub co2 hluav taws tua hluav taws puas ua haujlwm ntawm hluav taws kub oxidizer?
Lub tshuab tua hluav taws xob carbon dioxide tsis yog qhov kev xaiv zoo rau kev tua hluav taws oxidizer vim nws ua haujlwm ntawm lub hauv paus ntsiab lus ntawm kev tsis suav nrog cov pa oxygen, thiab cov pa oxygen atmospheric tsis xav tau rau hluav taws kub oxidizer. Cov tshuaj tua hluav taws qhuav qhuav kuj tseem yuav siv tsis tau rau feem ntau
Vim li cas koj thiaj li yuav tsum tsis txhob nias qhov nyuaj thaum kos lub npoo coated ntawm TLC phaj?
Ua tib zoo tuav cov phaj kom zoo kom koj tsis txhob cuam tshuam cov txheej ntawm adsorbent lossis ua kom qias neeg. Saib xyuas kom tsis txhob nias nyuaj nrog cov cwj mem uas koj cuam tshuam cov adsorbent. Hauv kab, kos lub npe ntawm cov qauv uas koj yuav pom ntawm lub phaj, lossis kos cov lej rau lub sijhawm cov ntsiab lus