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← ScienceWhich outcome occurs when aluminum reacts with concentrated hydrochloric acid?
A)Hydrogen gas generation and salt formation✓
B)Formation noble gases with oxide precipitation
C)Neutralizations produce water but no fumes
D)Passivation from forms robust alloy layers
💡 Explanation
Aluminum reacts with hydrochloric acid through a single displacement because *ionic bonding* promotes electron transfer, resulting in hydrogen gas and aluminum chloride salt. Therefore corrosion releases hydrogen gas rather than passivation, because oxygen gas is absent for complex oxides.
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