GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY
Cobalt hydroxide precipitate. Cobalt hydroxide precipitate (Co(OH)2) formed by adding 0.1 M solution of potassium hydroxide (KOH) to a 0.2 M solution of cobalt chloride (CoCl2). The reaction is CoCl2 + KOH -> Cu(OH)2 + KCl. This is an example of a double replacement reaction.
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