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What is the equation for Photosynthesis?

6CO₂   +   6H₂O   +   Energy   ———>   C₆H₁₂O₆   +   6O_{2
Carbon          Water              from                           Glucose           Oxygen}
^{Dioxide                                Sunlight}

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What are the steps of photosynthesis?
1. CO2 and H2O enter the leaf.
2. Light hits the pigmentations in the membrane of a thylakoid, which causes the H2O to split into O2.
3. The electrons shift down into the enzymes.
4. Sunlight hits the second pigmentation molecule enabling the enzymes to transform the ADP into ATP and the NADP+ into NADPH.
5. The Calvin Cycle takes the ATP and NADPH to use as the power source for converting Carbon Dioxide in the atmosphere into Glucose(Sugar).

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Where do the products come from?
The Glucose comes from the solar and chemical energy surrounding the plant. The Oxygen comes from the air. And the Water is absorbed from the carbon dioxide molecules in the air. 

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Where do the Reactants come from?
The water comes from the sky and the soil. The carbon dioxide is absorbed through the leaves of the plant. And the Chlorophyll arises from the leaves green pigmentation and absorbs the sun light for energy.
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Where do the Products go?
After the products are used they are dispensed into the atmosphere.
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Where do the Reactants go?
The Reactants are taken and used to help the plant produce more products.