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A device used to measure the densities of liquids and solutions.

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Le Chatelier's Principle

States that a system at equilibrium, or striving to attain equilibrium, responds in such a way as to counteract any stress placed upon it.
If a stress (change of conditions) is applied to a system at equilibrium, the system shifts in the direction that reduces stress.

Endothermicity

The absorption of heat by a system as the process occurs.

Matter

Anything that has mass and occupies space.

Domain

A cluster of atoms in a ferromagnetic substance, all of which align in the same direction in the presence of an external magnetic field.

Atmosphere

A unit of pressure, the pressure that will support a column of mercury 760 mm high at 0 °C.

Optical Isomers

Stereoisomers that differ only by being nonsuperimposable mirror images of each other, like right and left hands, also called enantiomers.

Anion

A negative ion, an atom or goup of atoms that has gained one or more electrons.

 

Coordination Sphere

The metal ion and its coordinating ligands but not any uncoordinated counter-ions.

Vapor

A gas formed by boiling or evaporating a liquid.

Bronsted-Lowry Base

A proton acceptor