Area of Chemistry: Galvanic cells are made from two electrodes that consist of an anode and a cathode. One of the electrodes is negative, and this electrode will always be the more reactive metal that has the ability to displace the positives electrode’s ions. In this displacement reaction, the electrons in the more reactive metal will push against the ions of the less reactive metal. This causes a transfer of ions, and thus a transfer in the state of matter. The more reactive metal will undergo a chemical change from a solid → aqueous solution. And the less reactive metal will + undergo chemical change from an aqueous → solid state of matter. In electrochemistry, galvanic cells, or otherwise known as voltaic cells, are electrochemical cells that are used to transfer spontaneous redox reactions. These redox reactions are formed from oxidation and reduction; and can be utilised to produce an electrical charge. More specifically , this causes electrons to transfer spontaneously in a redox reaction. And these electrons produce kinetic energy that transfers from each half-cell, thus producing electricity