| Quiz | Relative formula mass |
|---|---|
| Name | |
| Result | FAILED |
| Score | 6 / 8 (75%) |
| Passing score | 6.4 |
| Quiz took | 12 min 28 sec |
| Quiz finished at | 2021-04-04 06:00:43 |
Ar represents
Mr represents
What is the Mr of carbon dioxide? Ar of carbon is 12, Ar of oxygen is 16.
What is the Mr of methane? Ar of carbon is 12, Ar of hydrogen is 1.
What is the Mr of ammonia? Ar of nitrogen is 14, Ar of hydrogen is 1.
What is the Mr of carbon monoxide? Ar of carbon is 12, Ar of oxygen is 16.
What is the Mr of water? Ar of hydrogen is 1, Ar of oxygen is 16.
What is the Mr of KOH? Ar of hydrogen is 1, Ar of oxygen is 16, Ar of potassium is 39.