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Theory of reaction rates that states that reactants pass through high-energy transition states before forming products.

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Activity of a component of ideal mixture

A dimensionless quantity whose magnitude is: equal to molar concentration in an ideal solution, equal to partial pressure in an ideal gas mixture, and defined as 1 for pure solids or liquids.

Hydrophilic Colloids

Colloidal particles that repel water molecules.

Hybridization

Mixing a set of atomic orbitals to form a new set of atomic orbitals with the same total electron capacity and with properties and energies intermediate between those of the original unhybridized orbitals.

Faraday

One faraday of electricity corresponds to the charge on 6.022 x 1023 electrons, or 96,487.301 coulombs.

Inhibitory Catalyst

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

Lewis Base

Any species that can make available a share in an electron pair.

Disproportionation Reactions

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

Sublimation

The direct vaporization of a sold by heating without passing through the liquid state.

Vapor

A gas formed by boiling or evaporating a liquid.

Eluate

Solvent (or mobile phase) which passes through a chromatographic column and removes the sample components from the stationary phase.