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Substances consumed in a chemical reaction.

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Stoichiometry

Description of the quantitative relationships among elements and compounds as they undergo chemical changes.

Displacement Reactions

Reactions in which one element displaces another from a compound.

 

Oxide

A binary compound of oxygen.

Diagonal Similarities

Refers to chemical similarities in the Periodic Table of elements of Period 2 to elements of Period 3 one group to the right, especially evident toward the left of the periodic table.

Derivative

A compound that can be imagined to arise from a partent compound by replacement of one atom with another atom or group of atoms. Used extensively in orgainic chemistry to assist in identifying compounds.

Faraday's Law of Electrolysis

One equivalent weight of a substance is produced at each electrode during the passage of 96,487 coulombs of charge through an electrolytic cell.

Hydrogen Bond

A fairly strong dipole-dipole interaction (but still considerably weaker than the covalent or ionic bonds) between molecules containing hydrogen directly bonded to a small, highly electronegative atom, such as N, O, or F.

Element

A substance that cannot be decomposed into simpler substances by chemical means.

Electron Affinity

The amount of energy absorbed in the process in which an electron is added to a neutral isolated gaseous atom to form a gaseous ion with a 1- charge, has a negative value if energy is released.

Chemical Kinetics

The study of rates and mechanisms of chemical reactions and of the factors on which they depend.