Electrolysis
Numéro d’image : 11997243
| Electrolysis of water using a Hoffman apparatus. Electrolysis uses an electrical current to decompose molecules of water. Reactions at the two electrodes (black hooks dipped in the beaker of water) are powered by an electric current from a battery. Oxygen and hydrogen gas bubbles are evolved at the anode (left electrode) and cathode (right electrode) respectively. Water molecules are composed of two hydrogen atoms and an atom of oygen,leaving twice as much hydrogen as oxygen trapped in the test tubes. A burning splint ignites the hydrogen gas,while the oxygen relights a glowing splint | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Winters, Charles D. |
| Taille de l’image : | 2594 px × 2550 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : |
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