49.2 MB (3.1 MB compressed)
3390 x 5076 pixels
28.7 x 42.9 cm ⏐ 11.3 x 16.9 in (300dpi)
GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY
Displacement reaction with zinc. Zinc coil was added to a test tube containing a 0.2M copper (II) sulfate solution. Since zinc is 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 2 of 2.
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