1. How can you tell whether a change in matter is caused by a chemical reaction?
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Seven Things That Indicate a Chemical Change Is Occurring
Gas Bubbles Appear. Gas bubbles appear after a chemical reaction has occurred and the mixture becomes saturated with gas. ...
Formation of a Precipitate. ...
Color Change. ...
Temperature Change. ...
Production of Light. ...
Volume Change. ...
Change in Smell or Taste.
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