Question

Why must a chemical equation be balanced?

    Why must a chemical equation be balanced?

Introductory Chemistry Atoms First

Introductory Chemistry Atoms First

Steve Russo; Mike… 5th Edition

Chapter 8, Problem 26

Instant Answer

Solved by Expert Susan Hallstrom

03/06/2022

Step 1

This law states that matter cannot be created or destroyed in a reaction. In mathematical terms, this can be written as: \[ \text{{Total mass of reactants}} = \text{{Total mass of products}} \] Show more…

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Why must a chemical equation be balanced?

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Key Concepts

Law of Conservation of Mass

This principle states that in a closed system, mass is neither created nor destroyed during a chemical reaction. A balanced chemical equation reflects this by ensuring that the number of atoms for each element is the same on both the reactant and product sides, which is essential for accurately representing the transformation of matter.

Stoichiometry

Balancing chemical equations is fundamental to stoichiometry, the branch of chemistry that deals with the quantitative relationships between reactants and products. Accurate stoichiometric coefficients allow chemists to determine the correct proportions of substances needed or produced in a chemical reaction, facilitating predictions about reaction yields and necessary reactant quantities.

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