Cabbage as pH indicator. Purple cabbage being dipped into hydrochloric acid. The acid solution causes the cabbage to change colour from purple to red | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Beautifulchemistry.net |
Taille de l’image : | 3945 px × 2219 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |