Science 101: Why does a color change indicate a chemical change?

by: William C. Robertson, Ph.D.

There are a a number of indicators you can use to determine whether or not a chemical reaction has occurred. Among them are a change in color, the evolution of a gas, and the production or absorption of heat. To understand why any of these indicators work you must understand what is meant by a chemical reaction.


Type Journal ArticlePub Date 2/1/2006Stock # sc06_043_05_48Volume 043Issue 05

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