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The temperature at which liquid and solid coexist in equilibrium, also the freezing point.

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Alkylbenzene

A compound containing an alkyl group bonded to a benzene ring.

Emulsifying Agent

A sustance that coats the particles of the dispersed phase and prevents coagulation of colloidal particles, an emulsifier.

Bonding Pair

Pair of electrons involved in a covalent bond.

Coke

An impure form of carbon obtained by destructive distillation of coal or petroleum.

Chemical Change

A change in which one or more new substances are formed.

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.

Molecular Orbital

An orbit resulting from overlap and mixing of atomic orbitals on different atoms. An MO belongs to the molecule as a whole.

Polydentate

Refers to ligands with more than one donor atom.

Flammable

A liquid as defined by NFPD and DOT as having a flash point below 37.8°C (100°F).

Reaction Stoichiometry

Description of the quantitative relationships among substances as they participate in chemical reactions.