Interesting Chemistry

2022-05-22 15:07:15 This is what happens if you throw some heavy object into the mouth of a volcano.

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2022-05-20 22:21:13 Selection of chemical reactions:
1) phenol red + lithium
2) the same solution + nitric acid solution
3) KOH solution and aluminum foil
4) Cu(OH)2 + glycerol
5) nitrogen conc with copper
6) tin sponge
7) AgNO3 + NaCl.

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2022-05-20 13:07:50 Helium superfluidity. At the moment when the temperature drops to -271 C, helium begins to flow out of the vessel through the bottom. In this case, the bottom of the vessel has pores of 1 micron (one thousandth of a millimeter).

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2022-05-18 22:05:18 Lithium metal actively interacts with oxygen, forming lithium oxide. 4Li + O₂ → 2Li₂O. Therefore, if lithium is ignited on the surface of wood, which is rich in oxygen, a very violent reaction will occur, accompanied by an explosion and sparks. At the same time, the combustion temperature of lithium will be about 2300 C.

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2022-05-18 12:49:03 Gallium melts at 29.76°C. This is what happens when you put a spoon of gallium in warm water.

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2022-05-16 19:15:41 South Korea conducts first test of vacuum tunnel. The Korea Railway Research Institute has driven its mini train to a record speed of 1019 km/h, just below the speed of sound (1192 km/h). Scientists expect to launch this transport on the Seoul-Busan route as early as 2024, reducing travel time from 3 hours to 30 minutes.

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2022-05-15 20:10:38 Luminol + hydrogen peroxide.

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2022-05-15 11:29:03 One of the most popular demonstrative reactions, the so-called "Bettger volcano". The orange crystals are ammonium dichromate, which, when set on fire, begins to decompose releasing nitrogen gas, water, and chromium oxide as ash.

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2022-05-14 11:41:13 Do diamonds burn? Almost everything burns in oxygen, even diamonds. In this video, the diamond grit is in an of pure oxygen. Oxygen takes electrons from the carbon that makes up the diamond, causing the diamonds to partially evaporate, forming a bond with the oxygen CO₂, that is, carbon dioxide. Not the most beneficial transformation, but necessary to demonstrate the reaction.

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2022-05-13 23:21:00 Magnetic Ferrofluid Tree Sculpture: Concept Zero's "Nano Tree" uses a gold-colored ferrofluid that can be manipulated with a hand-held magnet.

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