Removal of some ions from solution by precipitation while leaving other ions with similar properties in solution.
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Interesting facts about metals
Metals have been used by people since ancient times. All the time the process of obtaining them was improved, useful alloys of various metals appeared. Let’s look at interesting facts about metals.
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Ozone
We breathe 24 hours a day, 7 days a week, consuming about 25 kg of air every day. It turns out that we practically predetermine our health by the air we breathe.
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Why do copper products change color, and what is the name of the process?
Probably, every person wants to know, why over time the copper turns green and becomes bloomed. This is easy to explain: that film is called patina.
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Use of diamonds
Diamond is a crystalline modification of pure carbon formed in the deep interior of the Earth, in the upper mantle at depths of more than 80-100 kilometers, at exceptionally high pressure and temperature. It is the most precious stone, the hardest and most wear-resistant mineral, the most...
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Gas of rotten eggs
If you happen to break a rotten egg, then you know the smell of hydrogen sulfide, because the stench of the spoiled egg depends on of its presence in rotting protein substances.
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Critical Mass
The minimum mass of a particular fissionable nuclide in a given volume required to sustain a nuclear chain reaction.
Fluorescence
Absorption of high energy radiation by a substance and subsequent emission of visible light.
Ionization Isomers
Isomers that result from the interchange of ions inside and outside the coordination sphere.
Carbanion
An organic ion carrying a negative charge on a carbon atom.
Stoichiometry
Description of the quantitative relationships among elements and compounds as they undergo chemical changes.
Aromatic Hydrocarbons
Benzene and its derivatives.
Gel
Colloidal suspension of a solid dispersed in a liquid, a semirigid solid.
Forbidden Zone
A relatively large energy separation between an insulator's highest filled electron energy band and the next higher energy vacant band. Beginning in the fourth energy level, a set of seven degenerate orbitals per energy level, higher in energy than s, p, and d orbitals of the same energy level.
Electroplating
Plating a metal onto a (cathodic) surface by electrolysis.
Intermolecular Forces
Forces between individual particles (atoms, molecules, ions) of a substance.
