A reaction between Zn(s) and HCl(aq) is carried out under four different sets of initial conditions. In each case, 0.50 g of Zn is used.
(A) powdered Zn with 25 mL of 2.0 M HCl at 35 °C
(B) powdered Zn with 25 mL of 1.0 M HCl at 25 °C
(C) single Zn strip with 25 mL of 2.0 M HCl at 35 °C
(D) single Zn strip with 25 mL of 1.0 M HCl at 35 °C
Which set of conditions is expected to yield the greatest initial rate of H₂(g) production?
a) C
b) B
c) A
d) D