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Adhesion of a species onto the surfaces of particles.

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Spectator Ions

Ions in a solution that do not participate in a chemical reaction.

Specific Heat

The amount of heat required to raise the temperature of one gram of substance one degree Celsius.

Coordination Isomers

Isomers involving exchanges of ligands between complex cation and complex anion of the same compound.

Reducing Agent

The substance that reduces another substance and is oxidized.

Solute

The dispersed (dissolved) phase of a solution.

Semipermable Membrane

A thin partition between two solutions through which certain molecules can pass but others cannot.

Absorption Spectrum

Spectrum associated with absorption of electromagnetic radiation by atoms (or other species) resulting from transitions from lower to higher energy states. An absorption spectrum is the inverse of an emission spectrum.

Equilibrium Constant

A quantity that characterizes the position of equilibrium for a reversible reaction, its magnitude is equal to the mass action expression at equilibrium. K varies with temperature.

Liquid Aerosol

Colloidal suspension of liquid in gas.

Inhibitory Catalyst

An inhibitor, a catalyst that decreases the rate of reaction.