zn + 2hcl → zncl₂ + h₂\nat 25°c, which 5.0 g zn sample will react the fastest with dilute hcl?\na bar\nb…
zn + 2hcl → zncl₂ + h₂\nat 25°c, which 5.0 g zn sample will react the fastest with dilute hcl?\na bar\nb lump\nc powdered\nd sheet metal
Answer
Brief Explanations:
The rate of a chemical reaction is affected by the surface - area to volume ratio. A powdered substance has the largest surface - area to volume ratio among the given forms of zinc. A larger surface area allows for more contact between zinc and HCl, thus increasing the reaction rate.
Answer:
C. powdered