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Compounds containing predominantly covalent bonds.

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Vapor

A gas formed by boiling or evaporating a liquid.

Distillation

The separation of a liquid mixture into its components on the basis of differences in boiling points. The process in which components of a mixture are separated by boiling away the more volitile liquid.

Condensation

Liquefaction of vapor.

Clay

A class of silicate and aluminosilicate minerals with sheet-like structures that have enormous surface areas that can absorb large amounts of water.

Entropy

A thermodynamic state or property that measures the degree of disorder or randomness of a system.

Compound

A substance of two or more elements in fixed proportions. Compounds can be decomposed into their constituent elements.

Debye

The unit used to express dipole moments.

Secondary Standard

A solution that has been titrated against a primary standard. A standard solution is a secondary standard.

 

A brief history of dyeing fabrics

 Dyeing fabrics is giving the fibers a homogeneous color that has a certain degree of strength. The methods of dyeing are very diverse, depending on the properties of the dyes and the dyed fibers.

Free Energy, Gibbs Free Energy

The thermodynamic state function of a system that indicates the amount of energy available for the system to do useful work at constant T and P.