What is the chemical equation for photosynthesis?

The equation for photosynthesis is represented accurately by the correct choice. It reflects the process where carbon dioxide and water, in the presence of light energy, are converted into glucose and oxygen.

In this process, six molecules of carbon dioxide (6CO2) combine with six molecules of water (6H2O) to produce one molecule of glucose (C6H12O6) and six molecules of oxygen (6O2). This balanced equation illustrates the stoichiometry of the reaction, indicating that the number of each type of atom is conserved. This is a fundamental aspect of chemical reactions, adhering to the law of conservation of mass.

The significance of the light energy is also crucial; it drives the conversion of these reactants into products. The glucose produced serves as energy storage for the plant, while the oxygen is released as a byproduct into the atmosphere, contributing to the planet's oxygen supply.

The other options do not accurately depict the photosynthesis process. For example, the first choice lacks the appropriate stoichiometry needed for balanced chemical reactions, and the last two choices misrepresent the products and reactants involved in photosynthesis, instead suggesting processes that do not occur in this context.