Chemistry: Molecular Approach (4th Edition)

Published by Pearson
ISBN 10: 0134112830
ISBN 13: 978-0-13411-283-1

Chapter 3 - Exercises: 23

Answer

a) Mg - 3 atoms ; P - 2 atoms ; O -8 atoms b) Ba - 1 atom ; Cl - 2 atoms c) Fe - 1 atom ; N - 2 atoms ; O -4 atoms d) Ca - 1 atom ; O - 2 atoms ; H -2 atoms

Work Step by Step

a) In the formula, we can see that there are 3 atoms of Mg, 2 atoms of $P$ (1x2), and 8 atoms of $O$ (4x2) b) In the formula, we can see that there is 1 atom of Ba and 2 atoms of $Cl$ c) In the formula, we can see that there is 1 atom of Fe, 2 atoms of $N$ (1x2), and 4 atoms of $O$ (2x2) d) In the formula, we can see that there is 1 atom of Ca, 2 atoms of $O$ (1x2), and 2 atoms of $H$ (1x2)
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