The overall chemical equation for photosynthesis is:
6CO₂ + 6H₂O light energy C₆H₁₂O₆ + 6O₂
Explanation:
In photosynthesis, carbon dioxide and water react in the presence of light energy, absorbed by chlorophyll, to produce glucose and oxygen. The glucose produced is used as an energy source by the plant, while oxygen is released as a by-product.