Which of these equations best summarizes photosynthesis? which of these equations best summarizes photosynthesis? h2o → 2 h+ + 1/2 o2 + 2e- c6h12o6 + 6 o2 → 6 co2 + 12 h2o c6h12o6 + 6 o2 → 6 co2 + 6 h2o + energy 6 co2 + 6 o2 → c6h12o6 + 6 h2o 6 co2 + 6 h2o → c6h12o6 + 6 o2?