Imagine yourself lost on an island alone and you are left with just the following scrap metals. Which items can you use to build 1.5 V battery? Assume that you can use coconuts as beakers and that seawater is a good electrolyte Lead bullets Iron nails Silver spoons Aluminum Can a.iron anode and aluminum cathode b.aluminum anode and silver cathode c.silver anode and lead cathode d.aluminum anode and lead cathode In gold cyanidation, what is the purpose of adding a strong base? a.Preven CN- volatilization b.Neutralize acid from previous processes c.Improve dissolution rate of gold d.Retard dissolution of foreign ions Which of the following form of cyanide is the least toxic? a.HCN b.CNO- C.CN- d.SCN

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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.