Which of the following plays a major role in chemical equations?

Options

A. Radicals and ions
B. Cations and anions
C. Reactants and products
D. Both (a) and (b)

Answer

To answer the question "Which of the following plays a major role in chemical equations?" we can break down the components of a chemical equation step by step.

### Step-by-Step Solution:

1. **Understanding Chemical Equations**:
- A chemical equation represents a chemical reaction. It shows the substances that are reacting and the substances that are produced as a result of the reaction.

2. **Identifying Reactants**:
- The substances that undergo a chemical change are called **reactants**. They are located on the left side of the chemical equation.

3. **Identifying Products**:
- The substances that are formed as a result of the chemical reaction are called **products**. They are located on the right side of the chemical equation.

4. **Role of Reactants and Products**:
- In a chemical equation, reactants play a crucial role as they initiate the reaction, while products are the outcome of the reaction. Both are essential for understanding the process of the chemical reaction.

5. **Conclusion**:
- Therefore, the major components that play a significant role in a chemical equation are **reactants** and **products**.

6. **Final Answer**:
- Based on the analysis, the correct option that plays a major role in chemical equations is **C: Reactants and Products**.