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1. Identify each of the following changes as endothermic, exothermic, or not possible to tell. The matter to keep in perspective is in italics in each case. Explain your decision in each case. a) When effervescent antacid tablets are dropped into water, the tablets slowly disappear and the water becomes fizzy. b) On a hot day, water vapor condenses out of the air and turns into liquid droplets on the outside of a cold glass of lemonade. c) The copper on the Statue of Liberty oxidizes and turns blue.
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1. Identify each of the following changes as endothermic, exothermic, or not possible to tell. The m...
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