Thaum cov hlau magnesium hlawv nws reacts nrog oxygen pom nyob rau hauv cov huab cua rau tsim Magnesium Oxide, uas yog ib tug compound. Ib qho kev sib txuas yog cov khoom siv uas cov atoms ntawm cov ntsiab lus sib txawv tau sib koom ua ke. Oxygen thiab magnesium tuaj yeem ua ke hauv tshuaj lom neeg los tsim cov tshuaj no.
Yuav ua li cas thaum magnesium hlawv hauv huab cua?
Thaum magnesium hnov mob nrog oxygen, nws ua lub teeb ci txaus kom dig muag ib ntus. Magnesium kub hnyiab heev vim tias cov tshuaj tiv thaiv tso tawm cua sov ntau. Raws li qhov tshwm sim ntawm cov tshuaj tiv thaiv exothermic no, magnesium muab ob lub electrons rau oxygen, tsim hmoov magnesium oxide (MgO).
Thaum magnesium hlawv hauv huab cua nws pom nplaim taws?
Ib txwm ib txwm ua kom pom magnesium hlawv los ntawm kev pib hauv Bunsen nplaim, thiab muab tshem tawm kom nws kub hnyiab hauv huab cua nrog qhov muag tsis pom teeb dawb. Cov khoom yog cov pa luam yeeb dawb.
Dab tsi yog qhov sib npaug rau hlawv magnesium hauv huab cua?
Qhov sib npaug yog: Magnesium + oxygen → magnesium oxide . 2Mg + O2 → 2MgO.
hom tshuaj tiv thaiv dab tsi yog hlawv magnesium?
Oxygen thiab magnesium ua ke hauv cov tshuaj tiv thaiv tshuaj los tsim cov tshuaj no. Tom qab nws hlawv, nws tsim cov hmoov dawb ntawm magnesium oxide. Magnesium muab ob lub electrons rau oxygen atoms los tsim cov khoom hmoov no. Nov yog exothermic reaction.
