Identify the following types of matter

1. Is mercury and element, compound or mixture?

2. Is table salt NaCl an element, compound or mixture?

3. Is pure water an element or a compound?

4. What type of mixture is coffee, Homogeneous or heterogenous?

5. What type of mixture is household vinegar ,Homogeneous or heterogenous?

6. What type of mixture is air, Homogeneous or heterogenous?

7. Tap water is Homogeneous or heterogenous?

8. Is carbon dioxide an element or a compound?

9. Vegetable soup is Homogeneous or heterogenous?

10. The ocean is a Homogeneous or heterogenous mixture?

11. Iron is an element or a compound?

12. Concrete is a Homogeneous or heterogenous mixture?

13. Wood is an element or a compound?