Practice Questions
| 1. |
Early atomic theories
Difficulty: easy |
2
|
| 2. |
Law of conservation of mass
Difficulty: easy |
2
|
| 3. |
Law of definite proportions
Difficulty: medium |
2
|
| 4. |
Dalton's atomic theory
Difficulty: easy |
2
|
| 5. |
Symbols of elements and compounds
Difficulty: medium |
3
|
| 6. |
Mass number
Difficulty: medium |
2
|
| 7. |
Atomicity
Difficulty: easy |
3
|
| 8. |
Ionic and molecular compounds
Difficulty: medium |
3
|
| 9. |
Chemical formula
Difficulty: hard |
2
|
| 10. |
Molecular mass
Difficulty: hard |
2
|