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Binary compounds of boron and hydrogen.

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Standard Molar Enthalphy of Formation

The amount of heat absorbed in the formation of one mole of a substance in a specified state from its elements in their standard states.

Mixture

A sample of matter composed of two or more substances, each of which retains its identity and properties.

Integrated Rate Equation

An equation giving the concentration of a reactant remaining after a specified time, has different mathematical form for different orders of reactants.

Oxidation

An algebraic increase in the oxidation number, may correspond to a loss of electrons.

Covalent Bond

Chemical bond formed by the sharing of one or more electron pairs between two atoms.

Square Planar

A term used to describe molecules and polyatomic ions that have one atom in the center and four atoms at the corners of a square.

Gas of rotten eggs

If you happen to break a rotten egg, then you know the smell of hydrogen sulfide, because the stench of the spoiled egg depends on of its presence in rotting protein substances.

Flammable

A liquid as defined by NFPD and DOT as having a flash point below 37.8°C (100°F).

xenon tetrafluoride

A colorless, crystalline compound, XeF4, prepared by heating a gaseous mixture of fluorine and xenon.

Pauli Exclusion Principle

No two electrons in the same atom may have identical sets of four quantum numbers.