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Consisting of different elements.

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Oxidation

An algebraic increase in the oxidation number, may correspond to a loss of electrons.

Electrolytic Cells

Electrochemical cells in which electrical energy causes nospontaneous redox reactions to occur. An electrochemical cell in which chemical reactions are forced to occur by the application of an outside source of electrical energy.

Ionic Compounds

Compounds containing predominantly ionic bonding.

Supercritical Fluid

A substance at temperature above its critical temperature.

Lanthanides

Elements 58 to 71 (after lanthanum).

Matter

Anything that has mass and occupies space.

Second Law of Thermodynamics

The universe tends toward a state of greater diorder in spontaneous processes.

Anode

In a cathode ray tube, the positive electrode. Electrode at which oxidation occurs.

Binary Acid

A binary compound in which H is bonded to one or more of the more electronegative nonmetals.

Free Radical

A highly reactive chemical species carrying no charge and having a single unpaired electron in an orbital.