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 2STP
Interpretation Introduction

Interpretation :

The correct option regarding a balanced chemical equation must be chosen from the given list.

Concept Introduction :

A balanced chemical equation is the evidence of conservation of mass as the total mass of reactants is equal to total mass of products.

Expert Solution & Answer
Check Mark

Answer to Problem 2STP

Correct answer: Option B is correct.

Explanation of Solution

Reason for correct option: Option B is correct because in a balanced chemical equal there must be equal number of each type of atoms in both the side of the chemical equation.

Conclusion

Reasons for incorrect options: Option A is incorrect as sum of coefficients might not be equal in both the sides.

Option C is incorrect as formulae of reactant and product are different.

Option D is incorrect as sums of subscripts on each side of the equation might be different due to having different coefficients of reactants and products.

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