Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall
ISBN 10: 0321809246
ISBN 13: 978-0-32180-924-7

Chapter 3 - Sections 3.1-3.12 - Exercises - Problems by Topic: 101

Answer

The balanced chemical equation for this reaction is: $2 Na(s) + 2 H_2O(l) \rightarrow H_2(g) + 2 NaOH(aq)$

Work Step by Step

Solid sodium, and liquid water are the reactants; hydrogen gas and aqueous sodium hydroxide are the products of this reaction. The unbalanced reaction is given as: $ Na(s) + H_2O(l) \rightarrow H_2(g) + NaOH(aq)$ We balance this equation by first balancing the $H$ atoms, then $O$ atoms, and finally the $Na$ atoms. The balanced chemical equation for the reaction then becomes: $2 Na(s) + 2 H_2O(l) \rightarrow H_2(g) + 2 NaOH(aq)$
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