50.0 MB (2.5 MB compressed)
5110 x 3420 pixels
43.2 x 29.0 cm ⏐ 17.0 x 11.4 in (300dpi)
MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY MARTYN F. CHILLMAID / SCIENCE PHOTO LIBRARY
Reaction of a gram of marble in acid. A gram of marble powder (L) and a gram of marble chips (R) are immersed in a solution of 25cc of dilute hydrochloric acid to discover if there is a difference in reaction. Because of the greater surface area of the powder the reaction is more vigorous. Hydrogen gas and exothermic heat are released in the reaction. Marble is a form of calcium carbonate.
Model release not required. Property release not required.