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-2

Actually, the question is correct in citing the seeming "corroding" and not dissolving of "Aluminum" in the context of a strong base, like Lime (Calcium hydroxide), which is apparently commonly attacking Aluminum alloy structures, for example, from the release of CaO dust from cement plants. For example, see this question, to quote: I ...


2

The answer is yes, you will get a potential difference of 0.2-(-2.37) = 2.57 V, if Mg and carbon filament are used as the electrode materials and connected into one circuit. The third digit after the decimal is removed, because different resources give slightly different values. From our own experiments using glassy carbon, its open circuit potential is -0....


3

Approximately 0.01 hour of searching, including the time taken to type in the search words, reveals this on Wikipedia: In hot concentrated hydrochloric acid, aluminium reacts with water with evolution of hydrogen, and in aqueous sodium hydroxide or potassium hydroxide at room temperature to form aluminates—protective passivation under these conditions is ...


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