## Chemistry: A Molecular Approach (3rd Edition)

Published by Prentice Hall

# Chapter 1 - Sections 1.1-1.8 - Exercises - Problems by Topic: 75d

#### Answer

0.001$0$9$0$; cross out the first 3 zeroes and underline the last 2 zeroes Significant zeroes above are bold.

#### Work Step by Step

The first 3 zeroes are insignificant because they are leading zeroes which serve a a place holder. The 4th zero is significant because it's an internal zero, and the last zero is also significant because it's a trailing zero

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.