The chemical reaction equation of photosyntesis is shown here: 6CO₂+6H₂O→C₆H₁₂O₆
What information is not given in this equation.

The 6O2 is left out.

Explanation:

The reactants has 18 oxygens but the products only has 6 oxygens. Adding 6O2 would get us to 18 oxygens on both sides.

This is not part of the equation, but energy could be considered as well.  

dna is made up of six smaller molecules -- a five carbon sugar called deoxyribose, a phosphate molecule and four different nitrogenous bases (adenine, thymine, cytosine and guanine).

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