Video: Vim li cas Coke thiab butane hnov mob?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Tsis yog xwb ua cov kua butane tuaj rau hauv kev sib cuag nrog sov coke , uas ua rau nws boil, tsim butane gaseous… tab sis qhov tshiab gaseous butane tsis muaj CO2. Qhov ntawd ua rau CO2 maj mus rau qhov tshiab butane npuas thiab nthuav ntau dua.
Ua li no, dab tsi ua rau Mentos cuam tshuam nrog coke?
Raws li cov Mentos khoom qab zib tog hauv lub raj mis, cov khoom qab zib ua rau kev tsim cov pa roj carbon dioxide ntau dua, thiab cov npuas nce ntxiv teb nrog cov pa roj carbon dioxide uas tseem yaj hauv lub dej qab zib rau ua rau cov pa roj carbon dioxide ntau dua kom tso tawm thiab tsim cov npuas ntau dua, ua rau tawg.
Tsis tas li, yuav ua li cas thaum koj sib xyaw Coke thiab butane? Coke thiab butane yog qhov tshiab kub. Thaum twg koj ntxiv ib pawg butane mus rau coke lub raj mis, tej zaum nws yuav pib tsim cov kua rau saum coke (nws yuav tsis sib tov ), uas ua rau cov dej khov nab kuab tsim, uas ua raws li cov insulator. Tam sim no, koj ntxeev lub raj mis.
Kuj tseem paub, puas yog butane hnov mob nrog dej?
Butane hlawv huv si rau carbon dioxide thiab dej nyob rau hauv cov pa oxygen. Tab sis yog tias butane yog nyob rau hauv dhau lub tshuaj tiv thaiv tsis huv thiab carbon monoxide (ib qho tshuaj lom!), thiab carbon (soot!) yuav tsim nrog rau qee cov pa roj carbon dioxide thiab dej.
Yuav ua li cas yog butane liquefied?
Qhov no txhais tau tias nws yog ib txwm muaj roj. Tam sim no nws yog Liquified Petroleum gas (los yog LPG). Ib yam li ntawd, butane Nws muaj qhov kub ntawm -0.5 ° C uas tuaj yeem nce mus rau 38 ° C los ntawm kev nce siab rau 2.6 cua. Yog li, los ntawm compressing cov pa roj, peb tau txais lawv tig los ntawm roj mus rau ib qho ua kua ntawm chav tsev kub.
Pom zoo:
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Beryllium tsis hnov mob ncaj qha nrog hydrogen tsis zoo li lwm yam alkaline ntiaj teb hlau los tsim ionic hydride. Qhov no yog vim oxidation peev xwm ntawm beryllium tsawg heev thiab yog li nws tsis pub nws cov electrons yooj yim rau hydrogen
Cov txheej txheem hu ua dab tsi thaum cov kua qaub thiab alkali hnov mob?
Neutralization cuam tshuam nrog cov kua qaub reacting nrog lub hauv paus lossis alkali, tsim cov ntsev thiab dej
Vim li cas qhov loj ntawm magnesium nce thaum nws hnov mob nrog oxygen?
Thaum cov magnesium yog cua sov, tag nrho cov huab hwm coj nce vim magnesium reacts nrog oxygen, tsim magnesium oxide (yog li nws txhawb qhov kev xav). Qhov hnyav nce yog vim muaj oxygen
Puas yog KMnO4 hnov mob nrog alkanes?
Thaum cov xim liab ntawm cov oxidizing tus neeg sawv cev KMnO4 ntxiv rau alkene, alkene yog oxidized rau diol thiab KMnO4 hloov mus rau xim av MnO2. Alkanes thiab aromatic tebchaw tsis hnov mob nrog poov tshuaj permanganate
Vim li cas cov kab mob Gram tsis zoo tshwm liab liab thaum cov kab mob Gram zoo pom ntshav liab?
Gram zoo hlwb stain ntshav vim lawv cov peptotidoglycan txheej yog tuab txaus, txhais tau tias tag nrho cov kab mob Gram zoo yuav khaws lawv cov stain. Gram tsis zoo hlwb stain liab vim lawv muaj ib tug nyias peptidoglycan phab ntsa, thiab lawv yuav tsis khaws ib yam ntawm cov ntshav stain los ntawm crystal violet