Photosynthesis balanced equation coefficients

Steps:

• Recall the overall chemical equation for photosynthesis: 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂.
• Note reactants (used): 6 CO₂ and 6 H₂O molecules.
• Note products (produced): 1 C₆H₁₂O₆ and 6 O₂ molecules.
• Compare option coefficients to equation for water and oxygen.

Why B is correct:

• Matches the equation's coefficients: 6 H₂O used and 6 O₂ produced.

Why the others are wrong:

• A: Uses 1 instead of 6 for both, understating molecular counts.
• C: Correctly states 6 CO₂ used and 1 C₆H₁₂O₆ produced but omits H₂O and O₂, incomplete for full process.
• D: Lists 8 H₂O used instead of 6, incorrect stoichiometry.

Final answer: B