Answer: True. Voltaic cells, also known as galvanic cells, are able to provide energy in the form of electricity because the potentials of their redox reactions permit electrons to flow spontaneously. Redox reactions involve the transfer of electrons from one species to another, and the flow of electrons through a circuit can be used to do work, such as powering an electric motor or a lightbulb. The potential difference between the two half-cells in a voltaic cell is called the cell potential, and it determines the direction and magnitude of the flow of electrons.
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