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Equilibrium constant for the ionization of water, Kw = [H3O+][OH-] =1.00 x 10-14 at 25 °C.

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Dimer

Molecule formed by combination of two smaller (identical) molecules.

Frequency

The number of repeating corresponding points on a wave that pass a given observation point per unit time.

Line Spectrum

An atomic emission or absorption spectrum.

Tetrahedral

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

Half-Life

The time required for half of a reactant to be converted into product(s). The time required for half of a given sample to undergo radioactive decay.

Saccharate

A compound formed by interaction of sucrose with a metallic oxide, usually lime, and useful in the purification of sugar.

 

Covalent Compounds

Compounds containing predominantly covalent bonds.

Saturated Solution

Solution in which no more solute will dissolve.

Dispersing Medium

The solvent-like phase in a colloid.

Nucleons

Particles comprising the nucleus, protons and neutrons.