Voltaic Cell (2)

Chemistry

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Simple chemical cell (1)

Two different metal plates are dipped into an electrolyte and connected with connecting wires

Simple chemical cell (2)

Also known as voltaic cell or galvanic cell

Simple chemical cell (3)

Converts chemical energy to electrical energy

Simple chemical cell (4)

A redox reaction occurs in the cell that causes the flow of electrons

Simple chemical cell (5)

The potential difference detected by the voltmeter indicates the presence of electrical current

Example of a simple chemical cell

Example of redox reaction in voltaic cell - simple chemical cell for a pair of Mg/Cu metal (1)

The E° value of magnesium is more negative, therefore, magnesium becomes the negative terminal

Example of redox reaction in voltaic cell - simple chemical cell for a pair of Mg/Cu metal (2)

The reaction that occurs at the negative terminal is oxidation

Example of redox reaction in voltaic cell - simple chemical cell for a pair of Mg/Cu metal (3)

The E° value of copper, Cu is more positive; therefore, copper, Cu becomes the positive terminal

Example of redox reaction in voltaic cell - simple chemical cell for a pair of Mg/Cu metal (4)

The reaction at the positive terminal is reduction reaction

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