Practice Questions
| 1. |
Atoms and molecules
Difficulty: easy |
1
|
| 2. |
Dalton's atomic theory
Difficulty: easy |
2
|
| 3. |
Symbols
Difficulty: easy |
2
|
| 4. |
Atomic mass
Difficulty: easy |
1
|
| 5. |
Chemical formula
Difficulty: easy |
2
|
| 6. |
Atomicity
Difficulty: medium |
2
|
| 7. |
Ions
Difficulty: medium |
2
|
| 8. |
Law of constant proportions
Difficulty: medium |
3
|
| 9. |
Law of conservation of mass
Difficulty: hard |
3
|
| 10. |
Formula unit mass
Difficulty: hard |
3
|