ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY
Calcium reacting with water. Strip of calcium (Ca) metal reacting with water (H2O). Hydrogen gas (H2) bubbles are produced, and eventually a precipitate (white) of calcium hydroxide (Ca[OH]2) will form. The reaction equation is: Ca + 2 H2O ----> Ca(OH)2 + H2.
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