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An Acid that can form two or more hydronium ions per molecule, often a least one step of ionization is weak.

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London Forces

Very weak and very short-range attractive forces between short-lived temporary (induced) dipoles, also called dispersion Forces.

Reaction Quotient

The mass action expression under any set of conditions (not necessarily equlibrium), its magnitude relative to K determines the direction in which the reaction must occur to establish equilibrium.

Salt Bridge

A U-shaped tube containing electrolyte, which connects two half-cells of a voltaic cell.

Alkaline Battery

A dry cell in which the electrolyte contains KOH.

Critical Temperature

The temperature above which a gas cannot be liquefied, the temperature above which a substance cannot exhibit distinct gas and liquid phases.

Lanthanides

Elements 58 to 71 (after lanthanum).

Evaporization

Vaporization of a liquid below its boiling point.

Chemical Equation

Description of a chemical reaction by placing the formulas of the reactants on the left and the formulas of products on the right of an arrow.

Valence Electrons

Outermost electrons of atoms, usually those involved in bonding.

Donor Atom

A ligand atom whose electrons are shared with a Lewis acid.