Answer : The balanced chemical reaction will be,

Explanation:
Photosynthesis : It is a type of chemical reaction that occurs in the green plants or living organism.
During the photosynthesis process, the carbon dioxide reacts with water in the presence of sunlight to produce glucose and oxygen as a product.
The balanced chemical reaction will be,

In the photosynthesis reaction, carbon dioxide and water molecule are the reactants and glucose and oxygen are the products.