49.2 MB (4.3 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. Magnesium coil was added to a test tube containing a 0.2M copper (II) sulfate solution. Since magnesium is more reactive than copper, a single displacement reaction occurred. Copper metal and magnesium sulfate formed as a result: Mg + CuSO4 -> Cu + MgSO4. In this sequence photo 1 was taken seconds after the coil was added, photo 2 was taken after about 1 min, photo 3 was taken after about 6.5 min, photo 4 was taken after about 1 hour. Note hydrogen gas bubbles that were produced in a secondary reaction. Photo 1 of 4.
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