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States of Matter Vocab
for Vocab quiz advanced
21
Chemistry
10th Grade
02/23/2026

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Term
Melting point
Definition
The temperature at which a crystalline solid becomes a liquid
Term
Nonpolar
Definition
Describes a molecule where there is NOT an unequal distribution of charge
Term
Viscosity
Definition
The measure of the resistance of a liquid to flow
Term
Freezing point
Definition
The temperature at which a liquid becomes a solid
Term
Surfactant
Definition
Soaps and detergents that lower water's surface tension
Term
Sublimation
Definition
The process by which a solid changes directly to a gas without first becoming a liquid
Term
Vapor pressure
Definition
The pressure exerted by an evaporated substance over a liquid
Term
Hydrogen Bond
Definition
A type of dipole-dipole force of attraction that is responsible for water's unique properties
Term
Vaporization
Definition
The process by which a liquid becomes a gas
Term
Polar
Definition
Describes a molecule that has a permanent unequal distribution of charge due to electronegativity
Term
Deposition
Definition
The process by which a gas or vapor becomes a solid
Term
Boiling point
Definition
The temperature at which the vapor pressure equals atmospheric pressure; for water it is 100 degrees Celsius
Term
Molecule
Definition
Another name for a covalent compound
Term
Dipole
Definition
Another name for a polar molecule
Term
Dispersion force
Definition
The force of attraction that exists among all molecules; the only force of attraction between nonpolar molecules.
Term
Volatility
Definition
The tendency of a molecule to evaporate at normal temperatures.
Term
Dipole-dipole force
Definition
The force of attraction between 2 polar molecules.
Term
Condensation
Definition
The reverse process of vaporization
Term
Surface tension
Definition
A measure of the inward pull by particles in the interior of a liquid; water has the highest measure of this among liquids due to hydrogen bonding.
Term
Intermolecular force
Definition
The force of attraction between molecules
Term
Evaporation
Definition
Vaporization only at the surface of the liquid.
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