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Region or volume in space in which the probability of finding electrons is highest.

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Suspension

A heterogeneous mixture in which solute-like particles settle out of solvent-like phase some time after their introduction.

Mass Number

The sum of the numbers of protons and neutrons in an atom, an integer.

Neutralization

The reaction of an acid with a base to form a salt and water. Usually, the reaction of hydrogen ions with hydrogen ions to form water molecules.

Heat of Condensation

The amount of heat that must be removed from one gram of a vapor at it's condensation point to condense the vapour with no change in temperature.

Fat

Solid triester of glycerol and (mostly) saturated fatty acids.

Ester

A Compound of the general formula R-C-O-R1 where R and R1 may be the same or different, and may be either aliphatic or aromatic.

Combination Reaction

Reaction in which two substances (elements or compounds) combine to form one compound.

Conformations

Structures of a compound that differ by the extent of rotation about a single bond.

Kinetic Energy

Energy that matter processes by virtue of its motion.

Valence Bond Theory

Assumes that covalent bonds are formed when atomic orbitals on different atoms overlap and the electrons are shared.