72.8 MB (3.9 MB compressed)
8200 x 3105 pixels
69.3 x 26.2 cm ⏐ 27.3 x 10.3 in (300dpi)
GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY
Calcium reacts with water. Calcium metal (Ca) reacts vigorously with water (H2O), producing hydrogen gas (H2) bubbles and slightly soluble calcium hydroxide (Ca(OH)2): Ca + H2O -> Ca(OH)2 + H2. In this sequence a chunk of calcium is dropped into a beaker with water. Calcium first sinks but then bubbles up due to H2. Calcium hydroxide is seen as white precipitate.
Model release not required. Property release not required.