Chemistry: The Central Science (13th Edition)

Published by Prentice Hall
ISBN 10: 0321910419
ISBN 13: 978-0-32191-041-7

Chapter 3 - Chemical Reactions and Reaction Stoichiometry - Exercises - Page 114: 3.22b

Answer

$C_2H_4(g)+3O_2(g)\rightarrow 2CO_2(g)+2H_2O(g)$ This is combustion.

Work Step by Step

$C_2H_4(g)+O_2(g)\rightarrow CO_2(g)+H_2O(g)$ A reaction with oxygen is combustion. Add a coefficient of 2 to $CO_2$ to balance $C$. Add a coefficient of 2 to $H_2O$ to balance $H$. $C_2H_4(g)+O_2(g)\rightarrow 2CO_2(g)+2H_2O(g)$ Add a coefficient of 3 to $O_2$ to balance $O$. $C_2H_4(g)+3O_2(g)\rightarrow 2CO_2(g)+2H_2O(g)$
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