| Quiz | Relative formula mass |
|---|---|
| Name | |
| Result | PASSED |
| Score | 8 / 8 (100%) |
| Passing score | 6.4 |
| Quiz took | 3 min |
| Quiz finished at | 2022-04-20 07:52:26 |
Ar represents
Mr represents
What is the Mr of carbon dioxide CO2? Ar of carbon is 12, Ar of oxygen is 16.
What is the Mr of methane CH4? Ar of carbon is 12, Ar of hydrogen is 1.
What is the Mr of ammonia NH3? Ar of nitrogen is 14, Ar of hydrogen is 1.
What is the Mr of carbon monoxide CO? Ar of carbon is 12, Ar of oxygen is 16.
What is the Mr of water H2O? Ar of hydrogen is 1, Ar of oxygen is 16.
What is the Mr of potassium hydroxide KOH? Ar of hydrogen is 1, Ar of oxygen is 16, Ar of potassium is 39.