Question

Classify the following into molecules , atom and compound
1. N
2. CO2
3. O
4. O3
5. Al2O3
6. ZnS
7. H2O
8. CaO
9. S
10. CO

Answer 1

N- atom CO2- compound O- atom O3- molecule Al2O3- compound ZnS-compound H2O-compound CaO- compound S- atom Co- atom