What are the indicators of a chemical change?

Understand the Problem

The question is asking about the signs or indicators that denote a chemical change has occurred. This involves understanding the characteristics that differentiate chemical changes from physical changes.

Answer

odor, temperature change, precipitate formation, production of gas bubbles, and a color change

The indicators of a chemical change are odor, temperature change, precipitate formation, production of gas bubbles, and a color change.

Answer for screen readers

The indicators of a chemical change are odor, temperature change, precipitate formation, production of gas bubbles, and a color change.

More Information

Chemical changes are often evidenced by multiple signs occurring simultaneously. These indicators highlight the re-arrangement of atoms and changes in the energy within the system.

Tips

A common mistake is confusing physical changes with chemical changes. Not all visible changes, such as changes in state or shape, indicate a chemical reaction.

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