| Quiz | Percentage mass |
|---|---|
| Name | |
| Result | PASSED |
| Score | 8 / 8 (100%) |
| Passing score | 6.4 |
| Quiz took | 35 sec |
| Quiz finished at | 2023-11-07 18:01:35 |
What is the percentage mass of nitrogen in ammonia NH3? Use a periodic table to help you with your calculations.
What is the percentage mass of hydrogen in ammonia NH3? Use a periodic table to help you with your calculations.
What is the percentage mass of carbon in methane CH4? Use a periodic table to help you with your calculations.
What is the percentage mass of hydrogen in methane CH4? Use a periodic table to help you with your calculations.
What is the percentage mass of hydrogen in water H2O? Use a periodic table to help you with your calculations.
What is the percentage mass of oxygen in water H2O? Use a periodic table to help you with your calculations.
What is the percentage mass of carbon in carbon dioxide CO2? Use a periodic table to help you with your calculations.
What is the percentage mass of oxygen in carbon dioxide CO2? Use a periodic table to help you with your calculations.