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A theory of chemical bonding based upon the postulated existence of molecular orbitals.

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Cathodic Protection

Protection of a metal (making ir a cathode) against corrosion by attaching it to a sacrifical anode of a more easily oxidized metal.

Ionic Bonding

Chemical bonding resulting from the transfer of one or more electrons from one atom or a group of atoms to another.

PseudobinaryIonic Compounds

Compounds that contain more than two elements but are named like binary compounds.

Extensive Property

A property that depends upon the amount of material in a sample.

Addition Reaction

A reaction in which two atoms or groups of atoms are added to a molecule, one on each side of a double or triple bond. Types of addition reaction include electrophilic, nucleophilic (polar) and free radical addition (non-polar).

Where is ozone used?

Ozone is widely used in various areas of our life. It is used in medicine, in industry, in everyday life.

Critical Pressure

The pressure required to liquefy a gas (vapor) at its critical temperature.

Kinetic-molecular Theory

A theory, that attempts to explain macroscopic observations on gases in microscopic observations on gases in microscopic observations on gases in microscopic or molecular terms.

Periodic Table

An arrangement of elements in order of increasing atomic numbers that also emphasizes periodicity.

Chemistry is a familiar school subject

Everyone liked to observe the reaction of reagents. But few know interesting facts about chemistry, which we will discuss in this article.