General, Organic, and Biological Chemistry: Structures of Life (5th Edition)

Published by Pearson
ISBN 10: 0321967461
ISBN 13: 978-0-32196-746-6

Chapter 1 - Chemistry in Our Lives - Understanding the Concepts - Page 22: 1.37

Answer

a. negative b. negative

Work Step by Step

a. adding two negative numbers always results to a negative number, as exemplified by some examples: $(-3) + (-5) = -8$ $(-0.1)+ (-4) = -4.1$ b. Any two numbers with opposing sign always yield a negative number. e.g. $(-2)*(17) = - 34$ $(5)*(-0.2) = -1$
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