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Descibes the quantitative (mass) relationships among elements in compounds.

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Mass

A measure of the amount of matter in an object. Mass is usually measured in grams or kilograms.

Contact Process

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

Chain Termination Step

The combination of two radicals, which removes the reactive species that propagate the change reaction.

Double Bond

Covalent bond resulting from the sharing of four electrons (two pairs) between two atoms.

Insoluble Compound

A very slightly soluble compound.

Dispersed Phase

The solute-like species in a colloid.

Denatured

A commercial term used to describe ethanol that has been rendered unfit for human consumption because of the addition of harmful ingredients to make it sales tax-expempt.

 

Frequency

The number of repeating corresponding points on a wave that pass a given observation point per unit time.

Central Atom

An atom in a molecule or polyatomic ion that is bonded to more than one other atom.

Debye

The unit used to express dipole moments.