Lecture 19
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What is electrochemistry?
An area of chemistry in which we use chemical reactions to produce electrons and electricity, or use electricity to cause a desired chemical reaction.
The ___________ from the atom that is ozidized to the atom that is reduced can __________
Transfer of e-, produce electricity
What is a voltaic cell set-up?
A device in which electron transfer is forced to take place through the external pathway rather than directly between reactants.
______ act as a terminal, or a holding place for electrons
electrodes
Why do electrons flow spontaneously through the external circuit?
In each half-cell of this voltaic cell, the electrons have a different electric PE, and the potential difference is called “cell potential.”