Answer: C6H12O6 + 6O2
Step-by-step explanation:
Always know that energy will not be a product, but is the reactant. Plus, the reactant, 6CO2 +6H2O + Energy can be thought of as;
6C
18O
12H
Energy
Energy is consumed and used to break and reform bonds to make glucose. Knowing that there is 18 oxygen, it would be impossible for the product to be just 1 O2 molecule, so having 6O2 balances the equation. This explanation should help in case you don't remember the photosynthesis formula.