Gas jar of Hydrogen. Hydrogen is a colourless gas at room temperature. Its chemical symbol is H and is the most abundant chemical in the universe. As a chemical compound,a water molecule contains one oxygen and two hydrogen atoms that are connected by covalent bonds. At a concentration of 4-74%,hydrogen gas forms an explosive mixture with air | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Chillmaid, Martyn F. |
Bildgröße: | 3686 px × 5529 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |