Balanced
Definition
A chemical equation is balanced when the number of atoms for each element is the same on both sides of the equation. This ensures the conservation of mass in a chemical reaction.
5 Must Know Facts For Your Next Test
- Balancing a chemical equation involves adjusting coefficients, not subscripts.
- A balanced equation reflects the law of conservation of mass, meaning matter cannot be created or destroyed.
- Each side of a balanced equation must have the same number and type of atoms for all elements involved.
- Balancing equations often requires iteratively adjusting coefficients to achieve equality.
- In some cases, polyatomic ions can be treated as single units to simplify balancing.
Review Questions
- Why is it important to balance a chemical equation?
- What rule must you follow when adding coefficients to balance an equation?
- How do you verify that an equation is balanced?
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Related terms
Coefficient: A numerical value placed in front of a chemical formula in an equation to indicate how many molecules or moles are involved.
Reactants: Substances present at the beginning of a chemical reaction that are consumed during the reaction.
Products: Substances formed as a result of a chemical reaction.
