scientist hands in gloves hold sterile flask with yellow liquid. oil research and toxic liquid concept - 化學反應 個影片檔及 b 捲影像00:32
nuclear fission animation. nuclear fission is the source of the energy released in a nuclear bomb or nuclear reactor. - 化學反應 個影片檔及 b 捲影像00:16
ammonia added to a precipitate of copper (ii) hydroxide. the presence of the ammonia causes the formation of a deep blue complex of tetraamminediaquacopper dihydroxide - 化學反應 個影片檔及 b 捲影像00:12
the chemical crystallization of edta is like blooming flowers one after another - 化學反應 個影片檔及 b 捲影像00:07黑色的背景
scientists are currently peering through microscopes to conduct research in the science laboratory. - 化學反應 個影片檔及 b 捲影像00:07
2 pence piece being put into a solution that removes the copper, turning it silver - 化學反應 個影片檔及 b 捲影像01:43
computer generated graphic of green cyanobacteria floating and dividing in water - 化學反應 個影片檔及 b 捲影像00:11
close up bunsen burner flame heats a glass flask filled with bubbling clear liquid - 化學反應 個影片檔及 b 捲影像00:11
cobalt (ii) hydroxide precipitate, formed as sodium hydroxide is dripped into cobalt (ii) chloride solution - 化學反應 個影片檔及 b 捲影像00:09
laboratory and scientific experiments and formulation of chemicals for medical research - 化學反應 個影片檔及 b 捲影像00:11
hydrogen reacting with oxygen to form water with subsequent burst of electrons in a flash of energy - renewable energy - 化學反應 個影片檔及 b 捲影像00:10
chemical reactions cause clear liquid to turn pink and substances inside tiny bottles to glow luminously as part of tests into the nutritional value of food. - 化學反應 個影片檔及 b 捲影像00:12發光的
microscopic footage of plant leaf cells showing chloroplasts containing chlorophyll - 化學反應 個影片檔及 b 捲影像00:14植物細胞
nickel (ii) hydroxide precipitate, formed as sodium hydroxide is dripped into nickel (ii) chloride - 化學反應 個影片檔及 b 捲影像00:14水滴
lead (ii) chloride precipitate, formed as potassium chloride is dripped into lead (ii) nitrate solution - 化學反應 個影片檔及 b 捲影像01:11
lead (ii) iodide precipitate, formed as potassium iodide is dripped into lead (ii) nitrate solution - 化學反應 個影片檔及 b 捲影像01:02黃色, 錄影像
4k motion abstract morphing wave composition blue violet color fluid background - 化學反應 個影片檔及 b 捲影像00:12