| Answer | Crossword Clue |
|---|---|
| syngas | a mixture of carbon monoxide and hydrogen |
| syngasses | SYNGAS, a mixture of carbon monoxide and hydrogen |
| syngases | SYNGAS, a mixture of carbon monoxide and hydrogen |
| methanation | the production of methane esp from carbon monoxide and hydrogen |
| methanations | METHANATION, the production of methane esp from carbon monoxide and hydrogen |
| whitedamp | a mixture of poisonous gases, esp carbon monoxide, in a mine |
| whitedamps | WHITEDAMP, a mixture of poisonous gases, esp carbon monoxide, in a mine |
