World of Chemistry, 3rd edition
World of Chemistry, 3rd edition
3rd Edition
ISBN: 9781133109655
Author: Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste
Publisher: Brooks / Cole / Cengage Learning
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Chapter 7, Problem 33A
Interpretation Introduction

Interpretation :

The factor which is counted on both the side of an equation to check that an equation is balanced must be explained.

Concept Introduction :

A balanced chemical equation represents a chemical reaction in which number of atoms is same on both the side of the equation.

Expert Solution & Answer
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Answer to Problem 33A

Number of atoms is counted to check that an equation is balanced.

Explanation of Solution

  NaCl(aq)+AgNO3(aq)AgCl(s)+NaNO3(aq).

From the above chemical equation it is clear that number of each atom are same on both the sides of the equation. Numbers of Na, Cl, Ag, N and O in both the sides are 1,1,1,1 and 3 respectively. This is the requirement of law of conservation of mass.

Conclusion

Number of atoms is counted in both the side of an equation to check that a reaction is balanced.

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