Question

Zn+2HCl -> ZnCl2+H2At 25oC, which 5.0g Zn sample will react fastest with dilute HCl? A) bar B) lump C) powdered D) sheet metal

Answer 1

The reaction rate can be affected by factors such as the physical estate of reactants, temperature, or surface area.

Powdered Zn has more area exposed.