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Analyze Factors Affecting Reaction Rate Practice Test
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Q1
A student reacts the same mass of zinc with 50 mL of 1.0 M HCl. The zinc pieces are the same size in both trials, and the acid concentration is unchanged.
Trial 1: HCl at 15°C; slow bubbling; finishes in ~100 s
Trial 2: HCl at 35°C; vigorous bubbling; finishes in ~40 s
What is the best reason the reaction is faster at 35°C?
A student reacts the same mass of zinc with 50 mL of 1.0 M HCl. The zinc pieces are the same size in both trials, and the acid concentration is unchanged.
Trial 1: HCl at 15°C; slow bubbling; finishes in ~100 s
Trial 2: HCl at 35°C; vigorous bubbling; finishes in ~40 s
What is the best reason the reaction is faster at 35°C?