File:55. Бакарно огледало.ogg

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Original file ‎(Ogg multiplexed audio/video file, Theora/Vorbis, length 1 min 14 s, 1,920 × 1,080 pixels, 5.8 Mbps overall, file size: 51.25 MB)

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English: Copper mirror

- Copper(II) formate is strongly heated in a test tube. A copper mirror is formed due to pyrolysis!

Cu(HCOO)2·3H2O(s) → 4H2O(g) + CO2(g) + CO(g) + Cu(s)

Planned and performed by Marina Stojanovska, Miha Bukleski and Vladimir Petruševski, Department of Chemistry, FNSM, Ss. Cyril and Methodius University, Skopje, Macedonia.
Македонски: Бакарно огледало

- Бакар формат трихидрат се загрева силно во епрувета. При пиролизата се образува огледало од бакар:

Cu(HCOO)2·3H2O(s) → 4H2O(g) + CO2(g) + CO(g) + Cu(s)

Осмислено и изведено од Марина Стојановска, Миха Буклески и Владимир Петрушевски, Институт за хемија, ПМФ, УКИМ, Скопје.
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Source Own work
Author Deni Ingilizovski

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Date/TimeThumbnailDimensionsUserComment
current11:09, 3 September 20211 min 14 s, 1,920 × 1,080 (51.25 MB)Dandarmkd (talk | contribs)Uploaded own work with UploadWizard

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Format Bitrate Download Status Encode time
VP9 1080P 1.25 Mbps Completed 11:16, 3 September 2021 4 min 33 s
Streaming 1080p (VP9) 1.16 Mbps Completed 03:07, 13 January 2024 2.0 s
VP9 720P 606 kbps Completed 11:13, 3 September 2021 2 min 38 s
Streaming 720p (VP9) 516 kbps Completed 04:24, 17 January 2024 1.0 s
VP9 480P 370 kbps Completed 11:13, 3 September 2021 1 min 50 s
Streaming 480p (VP9) 279 kbps Completed 23:12, 16 December 2023 1.0 s
VP9 360P 256 kbps Completed 11:13, 3 September 2021 1 min 19 s
Streaming 360p (VP9) 166 kbps Completed 11:54, 17 December 2023 1.0 s
VP9 240P 192 kbps Completed 11:12, 3 September 2021 1 min 6 s
Streaming 240p (VP9) 101 kbps Completed 23:22, 8 December 2023 1.0 s
WebM 360P 590 kbps Completed 11:12, 3 September 2021 57 s
Streaming 144p (MJPEG) 842 kbps Completed 03:10, 29 October 2023 5.0 s
Stereo (Opus) 90 kbps Completed 05:15, 12 November 2023 2.0 s
Stereo (MP3) 128 kbps Completed 21:01, 28 October 2023 3.0 s

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