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: 23c

Answer

1 Iron (Fe) atom 2 Nitrogen (N) atoms 4 Oxygen (O) atoms

Work Step by Step

In the formula $Fe(NO_{2})_{2}$, there is only 1 Iron atom because there is no subscript beside "Fe" indicating that there is only one of that atom. However, the nitrogen atom does not have only one atom because it is in brackets with a subscript of 2, indicating that nitrogen has 2 atoms. It's the same for oxygen: although oxygen already has 2 as its subscript, it is also in brackets with 2 as the subscript. So Oxygen has 4 atoms in this formula, as these are multiplicative.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.