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Which element reacts spontaneously with 1.0M HCl (aq) at room temperature? (1) copper (3) silver(2) gold (4) zinc
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Which element reacts spontaneously with 1.0M HCl (aq) at room temperature?

(1) copper (3) silver(2) gold (4) zinc

User Maxime B
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The answer is (4) zinc. Zinc can react with HCl at room temperature spontaneously and create H2. You can know this property from the metal activity order.
User CrimsonDiego
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Which element reacts spontaneously with 1.0 M HCl(aq) at room temperature? (1) copper (2) gold (3) silver (4) zinc
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