- The photosynthesis process converts carbon dioxide and water into glucose and oxygen using light energy.
- The chemical equation is represented as \(6 CO_2 + 6 H_2O \rightarrow C_6H_{12}O_6 + 6 O_2\).
- Reactants are the substances on the left side of the chemical equation.
- The reactants are identified as \(6 CO_2 + 6 H_2O\), which corresponds to the first option: \(\boxed{6 CO_2 + 6 H_2O}\).
Explanation
- Understanding the Chemical Equation for Photosynthesis
The process of photosynthesis is the mechanism by which green plants and some other organisms transform light energy into chemical energy. During this process, plants take in carbon dioxide and water to produce glucose and oxygen. A balanced chemical equation represents this transformation as:
\[6 CO_2 + 6 H_2O \xrightarrow{\text{light energy}} C_6H_{12}O_6 + 6 O_2\]
In any chemical equation, substances on the left side of the arrow are known as the reactants—the inputs—while substances on the right side are the products—the outputs.
- Identifying the Reactants
Looking at the equation \(6 CO_2 + 6 H_2O \rightarrow C_6H_{12}O_6 + 6 O_2\), the reactants are the substances being consumed, which are carbon dioxide (\(CO_2\)) and water (\(H_2O\)). Specifically, the stoichiometry of the reaction requires six molecules of carbon dioxide and six molecules of water to form one molecule of glucose and six molecules of oxygen. Thus, the reactants are represented as \(6 CO_2 + 6 H_2O\).
- Selecting the Correct Representation
Comparing this to the provided choices:
- \(6 CO_2 + 6 H_2O\)
- \(6 CO_2 + O_2\)
- \(C_6H_{12}O_6 + 6 O_2\)
- \(C_6H_{12}O_6 + 6 H_2O\)
The first option matches our identification of the reactants. Therefore, the correct representation is \(6 CO_2 + 6 H_2O\), or as selected, the first choice. The final answer is \(\boxed{6 CO_2 + 6 H_2O}\).
Examples
Photosynthesis is the foundation for life on Earth as it is the primary process that converts solar energy into food, providing oxygen as a byproduct. In everyday agriculture, farmers optimize the availability of these reactants—such as ensuring proper irrigation (water) and managing greenhouse carbon dioxide levels—to maximize crop yield and plant health. Understanding the chemical requirements of this reaction is essential for both biological studies and practical applications in plant growth and environmental management.