Question

The table below lists 4 substances. Two of the listed substances are elements and two of the listed substances are compounds. Which two of the substances are compounds? Indicate your response by marking two of the substances as compounds and two of the substances as elements.

There is no partial credit for this answer, the table must be filled out entirely correct (the correct two substances selected as compounds and the correct two substances selected as elements) for credit.

iron (Fe)
Sodium Chloride (NaCI)
Carbon dioxide (CO^2)
Aluminum (AI)

element compound

Answer 1

So iron is element, sodium chloride is compound, same going with carbon dioxide, and Aluminum is an element?

Answer 2

Here’s the completed table indicating which substances are elements and which are compounds:

| Substance | Type |
|------------------------|----------|
| Iron (Fe) | Element |
| Sodium Chloride (NaCl) | Compound |
| Carbon Dioxide (CO₂) | Compound |
| Aluminum (Al) | Element |

So the compounds are Sodium Chloride (NaCl) and Carbon Dioxide (CO₂), and the elements are Iron (Fe) and Aluminum (Al).