Which would be the easiest way to burn a copper penny?

Which would be the easiest way to burn a copper penny? Correct Answer Grind the copper penny into very small, dust-sized particles, and spray the particles into a Bunsen burner flame.

(C) In kinetics, the way to increase the reaction rate is to increase the ability of the reactants to meet. Grinding the copper to a dust will make it easy to burn in a flame.
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