Chemistry (12th Edition)

Published by Prentice Hall
ISBN 10: 0132525763
ISBN 13: 978-0-13252-576-3

Chapter 3 - Scientific Measurement - 3.1 Using and Expressing Measurements - Sample Problem 3.4: 7

Answer

A) 9 x 10 meters B) 4 x 10^8 meters C) 2 x 10^-2 meters D) 9 x 10^3 meters E) 2 x 10^-3 meters F) 6 x 10^2 meters

Work Step by Step

The second significant digit is greater than 5, so you round up. The second significant digit is less than 5, so you don't round up. The second significant digit equals 5, so you round up. The second significant digit is less than 5, so you don't round up. The second significant digit is greater than 5, so you round up. The second significant digit is less than 5, so you don't round up.
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