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File:04. Добивање на аморфен силициум и магнезиум силицид.webm

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Македонски: Во експериментот е прикажано добивање на аморфен силициум (1) и магнезиум силицид (2), при редукција на иситнет песок со магнезиум во прав:
(1) SiO2(s) + 2Mg(s) = Si(s) + 2MgO(s); и
(2) 2Mg(s) + Si(s) = Mg2Si(s).

Реакцијата опишана со (1) се иницира со загревање, а потоа е самоодржувачка и силно егзоенергетска.

Осмислено и изведено од Марина Стојановска, Миха Буклески и Владимир Петрушевски, Институт за хемија, ПМФ, УКИМ, Скопје.
English: The experiment shows preparation of amorphous silicon (1) and magnesium silicide (2), upon reduction of powdered sand with magnesium powder:
(1) SiO2(s) + 2Mg(s) = Si(s) + 2MgO(s); and
(2) 2Mg(s) + Si(s) = Mg2Si(s).

The reaction described by (1) is initiated by heating; then it is self-sustained and is highly exoenergetic.

Planned and performed by Marina Stojanovska, Miha Bukleski and Vladimir Petruševski, Department of Chemistry, FNSM, Ss. Cyril and Methodius University, Skopje, Macedonia.
Українська: Отримання аморфного кремнію (1) і силіциду магнію (2) при відновленні порошкоподібного піску порошком магнію:
(1) SiO2(s) + 2Mg(s) = Si(s) + 2MgO(s); і
(2) 2Mg(s) + Si(s) = Mg2Si(s).
Реакція, описана в (1), ініціюється нагріванням; тоді вона є самопідтримуваною і є високоекзоенергетичною.
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Media of the day This file was selected as the media of the day for 23 April 2025. It was captioned as follows:
English: Preparation of amorphous silicon (1) and magnesium silicide (2), upon reduction of powdered sand with magnesium powder: 
   (1) SiO2(s) + 2Mg(s) = Si(s) + 2MgO(s); and
   (2) 2Mg(s) + Si(s) = Mg2Si(s).
The reaction described by (1) is initiated by heating; then it is self-sustained and is highly exoenergetic.
Other languages
English: Preparation of amorphous silicon (1) and magnesium silicide (2), upon reduction of powdered sand with magnesium powder: 
   (1) SiO2(s) + 2Mg(s) = Si(s) + 2MgO(s); and
   (2) 2Mg(s) + Si(s) = Mg2Si(s).
The reaction described by (1) is initiated by heating; then it is self-sustained and is highly exoenergetic.
Українська: Отримання аморфного кремнію (1) і силіциду магнію (2) при відновленні порошкоподібного піску порошком магнію:

(1) SiO2(s) + 2Mg(s) = Si(s) + 2MgO(s); і
(2) 2Mg(s) + Si(s) = Mg2Si(s).

Реакція, описана в (1), ініціюється нагріванням; тоді вона є самопідтримуваною і високоекзоенергетичною.

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current00:47, 18 October 201618 s, 1,920 × 1,080 (14.15 MB)Petrovskyz (talk | contribs)User created page with UploadWizard

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VP9 1080P 1.16 Mbps Completed 23:31, 1 August 2018 50 s
VP9 720P 523 kbps Completed 23:31, 1 August 2018 28 s
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VP9 360P 208 kbps Completed 23:31, 1 August 2018 14 s
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WebM 360P 542 kbps Completed 06:22, 16 March 2017 16 s
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