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

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

Chapter 10 - Reaction Rates and Chemical Equilibrium - 10.1 Rates of Reactions - Questions and Problems - Page 376: 10.3

Answer

The number of collisions increases when more $Br_2(g)$ (a reactant) is added to the reaction, increasing the amount of molecules.

Work Step by Step

According to the text on "Concentrations of Reactants", page 374, the increase in the quantity of reacting molecules causes more collisions.
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