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The process by which solvent molecules pass through a semipermable membrane from a dilute solution into a more concentrated solution.

 

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History of fireworks

There is an assumption that the history of fireworks started in China, about 2000 years ago. It is possible that the Chinese accidentally discovered explosions by burning bamboo canes.

Saccharic acid

A white, needlelike, crystalline, water-soluble solid or syrup, C6H10O8, usually made by the oxidation of cane sugar, glucose, or starch by nitric acid. Also called "Glucaric acid."

Greenhouse Effect

Trapping of heat at the surface of the earth by carbon dioxide and water vapour in the atmosphere.

Metallurgy

Refers to the overall processes by which metals are extracted from ores.

Atomic Orbital

Region or volume in space in which the probability of finding electrons is highest.

Polar Bond

Covalent bond in which there is an unsymmetrical distribution of electron density.

Linear Accelerator

A device used for accelerating charged particles along a straight line path.

Solvent

The dispersing medium of a solution.

How to keep flowers in a vase for long time

The best gift for a woman, as you know, is a beautiful bouquet of flowers. But the cut flowers at home quite quickly wither. But your favorite roses or tulips can keep their freshness if you use our advice. Chemistry and various chemical elements will help us in this difficult matter!

Nucleons

Particles comprising the nucleus, protons and neutrons.