Chemistry, 23.10.2019 22:50 person76

During an experiment, mr. lehman tells his students to be alert for signs that an endothermic reaction is happening. which of the following scenarios would his students most likely observe? a test tube becomes cool to the touch. a liquid appears to glow. a new odor comes from a beaker. a solid forms from a mixture of solutions.

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During an experiment, mr. lehman tells his students to be alert for signs that an endothermic reacti...