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

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Half-Life

The time required for half of a reactant to be converted into product(s). The time required for half of a given sample to undergo radioactive decay.

Reactants

Substances consumed in a chemical reaction.

Ionization Constant

Equilibrium constant for the ionization of a weak electrolyte.

Dipole-dipole Interactions

Attractive interactions between polar molecules, that is, between molecules with permanent dipoles.

Ampere

Unit of electrical current, one ampere equals one coulomb per second.

 

Coordinate Covalent Bond

A covalent bond in which both shared electrons are donated by the same atom, a bond between a Lewis base and a Lewis acid.

Cohesive Forces

All the forces of attraction among particles of a liquid.

Indicators

For acid-base titrations, organic compounds that exhibit different colors in solutions of different acidities, used to determine the point at which reaction between two solutes is complete.

xylene

Any of three oily, colorless, water-insoluble, flammable, toxic, isomeric liquids, C8H10, of the benzene series, obtained mostly from coal tar: used chiefly in the manufacture of dyes.

Solvation

The process by which solvent molecules surround and interact with solute ions or molecules.