48.8 MB (5.3 MB compressed)
3369 x 5061 pixels
28.4 x 42.9 cm ⏐ 11.2 x 16.9 in (300dpi)
GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY GIPHOTOSTOCK / SCIENCE PHOTO LIBRARY
Copper in hydrochloric acid. A coil of copper is placed in a test tube with 1M solution of hydrochloric acid at room temperature. No reaction occurs.
Model release not required. Property release not required.