Chemistry: A Molecular Approach (3rd Edition)

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

Chapter 1 - Sections 1.1-1.8 - Exercises - Problems by Topic - Page 40: 78e


There is one significant figure in 2000.

Work Step by Step

Any non-zero numbers are significant (so the 2 in this case) but the zeroes are insignificant because it could just as easily be re-written as $2 \times 10^{3}$ (which eliminates the insignificant figures)
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