A chemical equation is the symbolic representation of a chemical reaction. A chemical equation must be balanced according to the Law of Conservation of Mass. In order to balance a chemical equation, the molecular formulas in the equation cannot be altered. A coefficient specifies how many of each molecule are required for a balanced equation.
After completing this module, you will be able to:
- Define the terms chemical equation and coefficient.
- Apply the law of conservation of mass to describe the characteristics of a balanced chemical equation.
- Determine whether or not a chemical equation is balanced.