GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY
Adding sulfuric acid to water, 3 of 4. Sulfuric acid (H2SO4), 0.1 M concentration, is poured into a beaker that contains water with few drops of universal indicator added. Initially water is green (neutral), then it progressively turns red as the solution becomes acidic throughout the volume.
Model release not required. Property release not required.