Justin mixed two clear liquids together during an experiment and made the following observations: The mixed liquids decreased in temperature without any refrigeration or other action to change the temperature. The color of the liquid changed to blue. Which statement best describes Justin's experiment? A. A physical change occurred, and this caused the liquid's chemical properties to change. B. A chemical change occurred, and this caused the liquid's physical properties to change. C. A physical change occurred, so only physical properties changed. D. A chemical change occurred, so only chemical properties changed.
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