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The amount of heat that must be removed from one gram of a liquid at its freezing point to freeze it with no change in temperature.

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Neutralization

The reaction of an acid with a base to form a salt and water. Usually, the reaction of hydrogen ions with hydrogen ions to form water molecules.

Wild patina, is it so bad?

Usually this kind of patina appears on monuments. The most striking example is the Statue of Liberty in New York.

Eutrophication

The undesirable overgrowth of vegetation caused by high concentrates of plant nutrients in bodies of water.

Suspension

A heterogeneous mixture in which solute-like particles settle out of solvent-like phase some time after their introduction.

Coordination Compound or Complex

A compound containing coordinate covalent bonds.

Crystal Field Theory

Theory of bonding in transition metal complexes in which ligands and metal ions are treated as point charges, a purely ionic model, ligand point charges represent the crystal (electrical) field perturbing the metal?s d orbitals containing nonbonding electrons.

Heterogeneous Mixture

A mixture that does not have uniform composition and properties throughout.

Differential Thermometer

A thermometer used for accurate measurement of very small changes in temperature.

Strong Field Ligand

Ligand that exerts a strong crystal or ligand electrical field and generally forms low spin complexes with metal ions when possible.

xylan

The pentosan occurring in woody tissue that hydrolyzes to xylose: used as a source of furfural.