Aerosol

Aerosol, AIR uh sahl, is a mixture of extremely small particles in gas. The particles may consist... More >>

Allotropy

Allotropy, uh LOT ruh pee, in chemistry, is the ability of an element to exist in more than one... More >>

Ash

Ash is the substance that remains after an organic substance has been burned. The word ashes... More >>

Boiling point

Boiling point is the temperature at which a liquid bubbles and changes into vapor. At this... More >>

Bond

Bond, in chemistry, is the attraction that holds atoms together in groups of two or more. Bonds... More >>

Chemical

Chemical is any of the many substances that make up the world's materials. Many chemicals are... More >>

Cohesion

Cohesion, koh HEE zhuhn, is the force that holds a material together. It results from the... More >>

Colloid

Colloid, KOL oyd, is a material composed of tiny particles of one substance that are dispersed... More >>

Density

Density is the mass... More >>

Electromotive series

Electromotive series, also called the electrochemical series or activity series, is a listing of... More >>

Emulsion

Emulsion, ih MUHL shuhn, is a preparation of one liquid evenly dispersed in another. The two... More >>

Halogen

Halogen, HAL uh juhn. The halogens are the chemical elements astatine (chemical symbol, At),... More >>

Ice

Ice is frozen water. Low temperatures cause ice to form on lakes and rivers and on wet streets... More >>

Isomers

Isomers, Y suh muhrz, are two or more chemical compounds that have the same number of each kind... More >>

Isomorphism

Isomorphism, y suh MAWR fihz uhm, in chemistry, is a close similarity in the crystal structure of... More >>