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The amount of energy necessary to break one mole of bonds of a given kind (in gas phase).The amount of energy necessary to break one mole of bonds in a substance, dissociating the sustance in the gaseous state into atoms of its elements in the gaseous state.

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Equilibrium or Chemical Equilibrium

A state of dynamic balance in which the rates of forward and reverse reactions are equal, the state of a system when neither forward or reverse reaction is thermodynamically favored.

Evaporization

Vaporization of a liquid below its boiling point.

S Orbital

A spherically symmetrical atomic orbital, one per energy level.

Percent Composition

The mass percent of each element in a compound.

Amine Complexes

Complex species that contain ammonia molecules bonded to metal ions.

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.

Heat Capacity

The amount of heat required to raise the temperature of a body (of any mass) one degree Celsius.

Octahedral

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

Density

Density is the ratio b/w Mass and Volume: D=M/V

Disproportionation Reactions

Redox reactions in which the oxidizing agent and the reducing agent are the same species.