To understand the reactants in the chemical equation for photosynthesis, we need to know the overall chemical process of photosynthesis. Photosynthesis can be represented by the following balanced chemical equation:
[tex]\[ 6 CO_2 + 6 H_2O \rightarrow C_6H_{12}O_6 + 6 O_2 \][/tex]
In this equation:
- [tex]\( CO_2 \)[/tex] stands for carbon dioxide.
- [tex]\( H_2O \)[/tex] stands for water.
- [tex]\( C_6H_{12}O_6 \)[/tex] stands for glucose, a sugar.
- [tex]\( O_2 \)[/tex] stands for oxygen.
The substances on the left side of the arrow are the reactants, and those on the right side are the products.
From the given options, the reactants are:
[tex]\[ 6 CO_2 + 6 H_2O \][/tex]
This choice correctly represents carbon dioxide and water, the substances that plants take in to produce glucose and oxygen during photosynthesis. Therefore, the correct answer is:
[tex]\[ 6 CO_2 + 6 H_2O \][/tex]