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Industrial process by which sulfur trioxide and sulfuric acid are produced from sulfur dioxide.

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Ionization

In aqueous solution, the process in which a molecular compound reacts with water and forms ions.

Hydrogenation

The reaction in which hydrogen adds across a double or triple bond.

Atmosphere

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

Formula

Combination of symbols that indicates the chemical composition of a substance.

 

Amine Complexes

Complex species that contain ammonia molecules bonded to metal ions.

Nickel-cadmium cell (Nicad battery)

A dry cell in which the anode is Cd, the cathode is NiO2, and the electrolyte is basic.

Water Equivalent

The amount of water that would absorb the same amount of heat as the calorimeter per degree temperature increase.

Oxidation

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

Electrolysis

Process that occurs in electrolytic cells.

Critical Point

The combination of critical temperature and critical pressure of a substance.