Step-by-step explanation
In the reaction:
6CO2 + 6H2O => C6H12O6 + 6O2 (completed and balanced)
The mole ratio between water (H2O) and oxygen (O2) is 1:1. For example, for 6 moles of water, 6 moles of O2 will be produced. If 2 moles of water were used, then 2 moles of O2 would be produced.
Answer: The mole ratio: 1:1