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10 Cards in this Set

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Electrochemistry:
The study of the interchange of chemical and electrical energy.
Oxidation:
The loss of electrons. Since electrons are negative, this will appear as an increase in the charge (e.g., Zn loses two electrons; its charge goes from 0 to +2). Metals are oxidized.
Oxidizing agent (OA):
The species that is reduced and thus causes oxidation.
Reduction:
The gain of electrons. When an element gains electrons, the charge on the element appears to decrease, so we say it has a reduction of charge (e.g., Cl gains one electron and goes from an oxidation number of 0 to -1). Nonmetals are reduced.
Reducing agent (RA):
The species that is oxidized and thus causes reduction.
Oxidation number:
The assigned charge on an atom. You’ve been using these numbers to balance formulas.
Half-reaction:
An equation that shows either oxidation or reduction alone.
Batteries
are cells that are connected in series; the potentials add to give a total voltage.
In a galvanic cell, oxidation
occurs at the anode.

an ox!
In a galvanic cell, reduction
occurs at the cathode

red cat!