File:38. Реакција на литиум со сулфурна киселина.ogv
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Македонски: Парче метален литиум се става во епрувета во која има концентрирана сулфурна киселина. Епруветата е поставена во сад со вода заради безбедносни причини. Во епруветата започнува да се одвива силно егзотермна реакција. Најнапред металот се топи и потоа како резултат на високата температура, се пали и гори. Бојата на пламенот е кармин црвена. Главната реакција што се одвива може да се запише со равенката:
2Li(s) + H2SO4(l) = Li2SO4(s) + H2(g) Осмислено и изведено од Марина Стојановска, Миха Буклески и Владимир Петрушевски, Институт за хемија, ПМФ, УКИМ, Скопје.English: A piece of lithium metal is added to a test tube filled with concentrated sulfuric acid. The test tube is placed in a jar with water for safety reasons. Highly exothermic reaction takes place. The metal first melts and then, due to the high temperature, starts to burn with а crimson red flame. The main reaction that takes place (there are side reactions, too) can be described by the equation:
2Li(s) + H2SO4(l) = Li2SO4(s) + H2(g) Planned and performed by Marina Stojanovska, Miha Bukleski and Vladimir Petruševski, Department of Chemistry, FNSM, Ss. Cyril and Methodius University, Skopje, Macedonia. |
| Date | |
| Source | Own work |
| Author | Карас Студио |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 12:29, 22 February 2020 | 19 s, 1,920 × 1,080 (13.19 MB) | Инокентиј (talk | contribs) | User created page with UploadWizard |
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