AP Chemistrymediummcq1 pt
According to the activity series, which metal reacts with 1 M HCl to release H₂ gas?
A.Zn
B.Cu
C.Ag
D.Au
Explanation
Core Concept
Metals positioned above hydrogen in the activity series can reduce H⁺ ions to H₂ while dissolving as their own cations. Zinc sits comfortably above hydrogen, so bubbles form promptly on zinc in dilute hydrochloric acid. Copper, silver, and gold all rank below hydrogen, so pieces of those metals simply sit unchanged in the same acid.
Correct Answer
AZn
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