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Aluminum reacts with hydrochloric acid, 4 of 6

Aluminum reacts with hydrochloric acid, 4 of 6

C043/6242

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49.2 MB (5.9 MB compressed)

3351 x 5130 pixels

28.4 x 43.4 cm ⏐ 11.2 x 17.1 in (300dpi)

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Credit

TURTLE ROCK SCIENTIFIC / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY TURTLE ROCK SCIENTIFIC / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY

Caption

Aluminum reacts with hydrochloric acid, 4 of 6. 1 millilitre of 5M hydrochloric acid (HCl) is added to crumbled aluminium metal (Al) foil in a test tube. Aluminum metal has a very thin but strong aluminium oxide (Al2O3) on its surface. For the first minute or so, there are no visible signs of a reaction as aluminium oxide is dissolved by the acid. After that hydrogen (H2) bubbles start to appear, temperature rises and the reaction speeds up greatly: Al + HCL -> AlCl3 + H2. As hydrochloric acid is used up, the reaction comes to a halt. This is an example of a single displacement reaction.

Release details

Model release not required. Property release not required.

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