Limewater test for carbon dioxide. Hydrochloric acid is poured onto chips of calcium carbonate in a test tube. The vigorous reaction between them produces carbon dioxide gas (and calcium chloride and water, neither seen), which passes up the tube and into a beaker of clear limewater. The presence of the carbon dioxide causes the limewater (calcium hydroxide) to turn milky, due to the formation of a precipitate of calcium carbonate. | |
Licence : | Droits gérés |
Crédit : | Science Photo Library |
Model Release : | Non requis |
Property release : | Non requis |
Durée : | 37 Secondes |
Aspect ratio : | 16/9 |
Restrictions : | - |