ASO asked in Science & MathematicsBiology · 3 years ago

A chemical equation for photosynthesis?

6 H2O + 6 CO2 → 6 O2 + C6H12O6

(A) Do carbon atoms become oxidized or reduced during photosynthesis?

(B) Are the carbon atoms moving to a higher or lower energy state during photosynthesis?

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  • John T
    Lv 5
    3 years ago
    Favorite Answer

    (A) Reduced. Carbon gains electrons

    Find oxidation number of C in both compounds mathematically

    CO2: C + (-2x2) = 0 --> C = +4

    C6H12O6: (6C + (12x1)+(-2x6) = 0) --> C = 0

    4 --> 0 (means gained 4 electrons)

    ... or you can use the fact that C's on CO2 gained hydrogen and electrons

    (B) Higher. It stores more potential energy as glucose.

    http://hyperphysics.phy-astr.gsu.edu/hbase/Chemica...

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