Vim li cas koj yuav tsum tsis txhob saib ncaj qha ntawm hluav taws kub magnesium?
Vim li cas koj yuav tsum tsis txhob saib ncaj qha ntawm hluav taws kub magnesium?

Video: Vim li cas koj yuav tsum tsis txhob saib ncaj qha ntawm hluav taws kub magnesium?

Video: Vim li cas koj yuav tsum tsis txhob saib ncaj qha ntawm hluav taws kub magnesium?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
Anonim

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).

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