CLEP Chemistry Practice Test

Category - Chemistry

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A student adds iron filings to a copper_(II) chloride solution at room temperature. A balanced equation for the reaction that occurs is shown below. Fe_(s) + CuCl_2(aq) → FeCl_2(aq) + Cu_(s)

Which of the following changes would most likely increase the reaction rate?

using larger pieces of iron
performing the reaction in an ice bath
decreasing the volume of the CuCl₂ solution
increasing the concentration of the CuCl₂ solution

Explanation

Answer: D - Increasing the concentration of the CuCl₂ solution.

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