You're asking about the process of photosynthesis, where plants use carbon dioxide and water to make glucose (sugar) and oxygen.

Here's the breakdown:

* The Equation: The overall chemical equation for photosynthesis is:

6CO₂ + 6H₂O + light energy → C₆H₁₂O₆ + 6O₂

* The Numbers: This equation tells us:

* 6 molecules of carbon dioxide (CO₂)

* 6 molecules of water (H₂O)

* Light energy is needed to drive the reaction

* 1 molecule of glucose (C₆H₁₂O₆) is produced

* 6 molecules of oxygen (O₂) are released

Therefore, it takes six carbon dioxide molecules to make a single glucose molecule.