CHARLES D. WINTERS / SCIENCE PHOTO LIBRARY CHARLES D. WINTERS / SCIENCE PHOTO LIBRARY
Magnesium reacting with acid. A ribbon of magnesium (Mg) reacts with hydrochloric acid (HCl) in a test tube. The tiny bubbles are hydrogen (H2) liberated in the reaction. The equation of this reaction is: Mg + 2HCL ----> MgCl2 + H2.
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