Remember that the lower an element's chemical potential, the easier it is to oxidize. Using potential, order these metals from easiest to oxidize to hardest to oxidize. Metals Chemical Potential (V) Most Active Drop Here Zn Zn2* + 2e Zn(s) -0.76 Easier Drop Here To Oxidize Na Na* + e = Na(s) -2.71 Drop Here Cu2+ + e = Cu(s) Cu 0.16 Drop Here K* + e = K(s) K -2.93 Drop Here Au* + e Au(s) Au 1.83 Harder Drop Here To Oxidize 2H* + 2e H2(g) H. Drop Here Least Active Ca Ca2+ + 2e Ca(s) -2.86
Science behind corrosion-test
Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.
Corrosion
Corrosion is defined as an activity that transforms refined metals into more chemically stable forms such as oxide, hydroxide, carbonate, or sulfide. It refers to the slow decomposition of things (typically metals); thanks to chemical and/or electrochemical reactions with their surroundings. Corrosion engineering is the science of preventing and controlling corrosion.
Order the metals from easiest to oxidize to hardest to oxidize.
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