TURTLE ROCK SCIENTIFIC / SCIENCE PHOTO LIBRARY TURTLE ROCK SCIENTIFIC / SCIENCE PHOTO LIBRARY
Lithium reacts with water, 3 of 4. A small piece of lithium metal (Li) is dropped into a Petri dish with water (H2O). A drop of detergent was added to water to prevent the metal from sticking to the side of the dish. Lithium floats and fizzes, producing bubbles of hydrogen gas (H2) and lithium hydroxide (LiOH): Li + H2O -> LiOH + H2. The presence of the hydroxide is accentuated by the addition of few drops of phenolphthalein indicator, which turns the solution pink, indicating alkaline solution.
Model release not required. Property release not required.