GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY
Displacement reaction. Zinc coil was added to a test tube containing a 0.2M copper (II) sulfate solution. Since zinc is a more reactive copper, a single-displacement reaction occurred. Copper metal and zinc (II) sulfate formed as a result: Zn + CuSO4 -> Cu + ZnSO4. In this sequence Photo 1 was taken seconds after the zinc was added, Photo 2 was taken after about 1 hour. Note hydrogen gas bubbles that were produced in a secondary reaction. Photo 1 of 2.
Model release not required. Property release not required.