General Chemistry 10th Edition

Published by Cengage Learning
ISBN 10: 1-28505-137-8
ISBN 13: 978-1-28505-137-6

Chapter 2 - Atoms, Molecules, and Ions - Questions and Problems - Page 85: 2.96

Answer

There are 6 atoms of oxygen on the right side. The equation is not balanced as it is written as the number of oxygen atoms on the left side is only 2.

Work Step by Step

Strategy: Count the oxygen atoms in each of the substances on the right side of the equation and then add them. Note: to take into consideration the coefficient in front of each substance. There are 2 atoms of oxygen in 2PbO There are 4 atoms of oxygen in 2 S$O_{2}$ ( 2x2=4) So in total there are 6 ( 2+4) atoms of oxygen on the right side. The equation is not balanced as it is written as the number of oxygen atoms on the left side is only 2.
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