Introductory Chemistry (5th Edition)

Published by Pearson
ISBN 10: 032191029X
ISBN 13: 978-0-32191-029-5

Chapter 7 - Chemical Reactions - Exercises - Questions - Page 239: 3

Answer

Evolution of a gas, change in color of the solution, evolution of heat and precipitation of solid.

Work Step by Step

There are many changes which accompany a reaction. They provide us with an evidence that a chemical reaction has taken place. Some of those changes are- a) Liberation of heat b) Evolution of a gas c) Change in color of the solution d) Precipitation of a solid.
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