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Binary compounds of boron and hydrogen.

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Molecular Weight

The mass of one molecule of a nonionic substance in atomic mass units.

Buffer Solution

Solution that resists change in pH, contains either a weak acid and a soluble ionic salt of the acid or a weak base and a soluble ionic salt of the base.

Amorphous Solid

A noncrystalline solid with no well-defined ordered structure.

Atomic Number


Integral number of protons in the nucleus, defines the identity of element.
 

Enzyme

A protein that acts as a catalyst in biological systems.

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.

Activity Series

A listing of metals (and hydrogen) in order of decreasing activity.

Low Spin Complex

Crystal field designation for an inner orbital complex, contains electrons paired t2g orbitals before eg orbitals are occupied in octahedral complexes.

Acyl Group

Compound derived from a carbonic acid by replacing the --OH group with a halogen (X), usually --Cl, general formula is O R--C--X.

Chain Termination Step

The combination of two radicals, which removes the reactive species that propagate the change reaction.