Methyl orange indicator changes colour when added to an acid or alkali. It turns red in acid (left) and yellow in alkali (right) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Andrew Lambert Photography |
Taille de l’image : | 4398 px × 3227 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |