General chemistry

General chemistry

Industry: Chemistry

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General chemistry

Van der Waals force

Chemistry; General chemistry

A force acting between nonbonded atoms or molecules. Includes dipole-dipole, dipole-induced dipole, and London forces.

Van der Waals radius

Chemistry; General chemistry

One half the distance between two nonbonded atoms, when attractive and repulsive forces between the atoms are balanced.

Zeeman effect

Chemistry; General chemistry

The splitting of spectral lines when an external magnetic field is applied.

Relative standard deviation

Chemistry; General chemistry

The relative standard deviation is a measure of precision , calculated by dividing the standard deviation for a series of measurements by the average measurement.

Substances that reverse or prevent severe oxidation by ozone. Antiozonants are added to rubber to prevent them from becoming brittle as atmospheric ozone reacts with them over time. Aromatic amines ...

Ferroin

Chemistry; General chemistry

A blood-red complex of Fe2+ ion with 1,10-phenanthroline, used as a redox indicator . Ferroin changes from red to pale blue when oxidized.

Oxidation

Chemistry; General chemistry

Oxidation is the loss of one or more electrons by an atom, molecule, or ion. Oxidation is accompanied by an increase in oxidation number on the atoms, molecules, or ions that lose electrons.