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Oxidation of metals in the presence of air and moisture.

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Most Popular

Greenhouse Effect

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

Electrodes

Surfaces upon which oxidation and reduction half-reactions, occur in electrochemical cells.

Single Bond

Covalent bond resulting from the sharing of two electrons (one pair) between two atoms.

Geometrical Isomers

Compounds with different arrangements of groups on either side of a bond with restricted rotation, such as a double bond or a single bond in a ring, for example cis-trans isomers of certain alkenes. Stereoisomers that are not mirror images of each other, also known as position isomers.

Inert s-pair Effect

Characteristic of the post-transition minerals, tendency of the outermost s electrons to remain nonionized or un shared in compounds.

Spectrum

Display of component wavelengths (colours) of electromagnetic radiation.

Complex Ions

Ions resulting from the formation of coordinate covalent bonds between simple ions and other ions or molecules.

Barometer

A device for measuring pressure.

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!

Diamagnetism

Weak repulsion by a magnetic field.