Zn (s) + 2 HCl (aq) →ZnCl2 (aq) + H2 (g)
Zn (s) reacts with HCl (aq) according to the equation shown above. In trial 1 of a kinetics experiment, a 5.0g piece of Zn (s) is added to 100mL of 0.10MHCl (aq). The rate of reaction between Zn (s) and HCl (aq) is determined by measuring the volume of H2 (g) produced over time. In trial 2 of the experiment, 5.0g of powdered Zn (s) is added to 100mL of 0.10MHCl (aq). Which trial will have a faster initial rate of reaction and why?
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