Chemistry 12th Edition

Published by McGraw-Hill Education
ISBN 10: 0078021510
ISBN 13: 978-0-07802-151-0

Chapter 3 - Mass Relationships in Chemical Reactions - Questions & Problems: 3.57

Answer

Please see the work below.

Work Step by Step

We need to balance chemical equations as they have to obey the law of conservation of mass. According to the law of conservation of mass, mass can neither be created nor destroyed. That's why we use a coefficient in front of the reactants and the products to ensure that there are equal numbers of each element on both sides of a chemical equation.
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