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Potential difference, Ecell, between oxidation and reduction half-cells under nonstandard conditions.

 

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Voltaic Cells

Electrochemical cells in which spontaneous chemical reactions produce electricity, also called galvanic cells.

 

Varieties of garnet minerals

The most famous type of garnet stone is pyrope (flaming). This is the "oldest of garnets", with a dense red color, similar to the grain of an edible garnet. Pyrope has a variety called rhodolite - a stone of dense pink or pink-purple color, which sometimes has the alexandrite effect and is used in elite jewelry.

Nernst Equation

Corrects standard electrode potentials for nonstandard conditions.

Acetic Acid

CA3COOH, clear, colorless liquid, pungent odor. Boiling point 140C, flash point 54C (closed cup), autoignition temperature 38OC.

Central Atom

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

Percent Composition

The mass percent of each element in a compound.

Ionization Constant

Equilibrium constant for the ionization of a weak electrolyte.

Physical Change

A change in which a substance changes from one physical state to another but no substances with different composition are formed. Example Gas to Liquid - Solid.

 

Formal Charge

A method of counting electrons in a covalently bonded molecule or ion, counts bonding electrons as though they were equally shared between the two atoms.

Kinetic Energy

Energy that matter processes by virtue of its motion.