GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY
Reaction rate. Magnesium coils are placed in test tubes with 1M hydrochloric acid (HCl, left) and 1M acetic acid (CH3COOH, right). Magnesium reacts with the acids producing hydrogen bubbles: Mg + 2H+ -> Mg+ + H2. Hydrochloric acid is a strong acid and completely dissociates in solution. Acetic acid is a weak acid and only partially dissociates. The reaction is faster in hydrochloric acid than in acetic acid, judged by the size and rate of hydrogen bubbles production.
Model release not required. Property release not required.