Here are 10 common compounds and their formulas:

1. Water: H₂O

2. Carbon Dioxide: CO₂

3. Sodium Chloride (Table Salt): NaCl

4. Glucose (Sugar): C₆H₁₂O₆

5. Ethanol (Alcohol): C₂H₅OH

6. Methane (Natural Gas): CH₄

7. Ammonia: NH₃

8. Sulfuric Acid: H₂SO₄

9. Sodium Bicarbonate (Baking Soda): NaHCO₃

10. Calcium Carbonate (Limestone): CaCO₃