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OpenStudy (anonymous):
You place ammonium nitrate crystals in water and stir. As you do so, the container becomes cold to the touch. This is an example of _______ reaction. A. an exothermic B. an endothermic C. a physical D. a heat pack
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OpenStudy (anonymous):
just please answer hero >:( please?
OpenStudy (anonymous):
B. an endothermic reaction
OpenStudy (anonymous):
container becomes cold as heat is absorbed from the system by the reaction
OpenStudy (anonymous):
Yeah, B.
OpenStudy (anonymous):
thanks Stroodle -- not only for the medal!!
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