Question

(1 point)
Element Compound
Iron (Fe)


Sodium Chloride (NaCl)


Carbon dioxide (CO2)


Aluminum (Al)

Answer 1

It looks like you're referencing a list of elements and compounds. Here's how they can be classified:

| Element | Compound |
|------------------|---------------------|
| Iron (Fe) | |
| Sodium Chloride (NaCl) | |
| Carbon dioxide (CO2) | |
| Aluminum (Al) | |

In this case:

- **Iron (Fe)** and **Aluminum (Al)** are elements.
- **Sodium Chloride (NaCl)** and **Carbon dioxide (CO2)** are compounds.

If you need additional information or context about these substances, such as their properties or uses, please let me know!