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: 3.19a

Answer

$Mg(s)+Cl_2(g)\rightarrow MgCl_2(s)$

Work Step by Step

The balanced equation for the reaction is $Mg(s)+Cl_2(g)\rightarrow MgCl_2(s)$ Mg is in the 2nd column of the periodic table so its ion has a +2 charge. Cl is in the 2nd column from the right, so its ion has a -1 charge. Mg and Cl combine in a 1:2 ratio to balance the charges.
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