Three jars containing red cabbage juice,turned red by adding lemon (acid),green by adding soap (alkali),and blue with nothing added | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Dorling Kindersley / UIG |
Bildgröße: | 5009 px × 3489 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |