1. Write the balanced chemical equation:

C + O₂ → CO₂

This equation tells us that one carbon atom reacts with one oxygen molecule (O₂) to produce one carbon dioxide molecule (CO₂).

2. Determine the limiting reactant:

* Carbon: 3 grams / 12.01 g/mol = 0.25 moles

* Oxygen: 8 grams / 32 g/mol = 0.25 moles

Since the ratio of carbon to oxygen in the balanced equation is 1:1, and we have equal moles of each, neither is in excess.

3. Calculate the moles of CO₂ produced:

* Since the ratio of carbon to CO₂ is 1:1, we will produce 0.25 moles of CO₂.

4. Convert moles of CO₂ to grams:

* 0.25 moles * 44.01 g/mol = 11 grams of CO₂

Therefore, 11 grams of carbon dioxide will be produced.