AP Chemistry Quiz
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A student compares two trials of the same reaction between a metal oxide solid and an acid solution. The mechanism is unchanged; only collision-related factors differ.
Condition 1: The solid metal oxide is present as large pellets in the acid.
Condition 2: The same mass of the solid metal oxide is ground into a fine powder before being added to the acid.
Acid concentration, temperature, and stirring are the same. Which statement best explains why the reaction is faster in Condition 2 than in Condition 1, focusing on collision frequency at the solid surface?
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