1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Explain why Zn is released and write the general equation.

  1. Nov 2, 2015 #1
    1. The problem statement, all variables and given/known data
    We throw clean Zn in a HCl solution and see that nothing happens. We add 2-3 drops CuSO4 and some kind of gas starts to release. Why dos this happen? Write the equation

    2. Relevant equations
    Zn+HCl->ZnCl2+H2

    3. The attempt at a solution
    I know that equation and also:
    Zn+CuSo4->ZnSo4+Cu
    But why doesn't H2 release in the first experiment? Maybe because it is too clean. COuld you also hep me with the general equation?
     
  2. jcsd
  3. Nov 2, 2015 #2

    Borek

    User Avatar

    Staff: Mentor

    Zn reacts from the very beginning, just slowly. Traces of copper reduced on the Zn surface speed up the reaction between Zn and H+.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Explain why Zn is released and write the general equation.
  1. Writing equations (Replies: 5)

  2. Writing Equations (Replies: 6)

Loading...