a student is performing a reaction in a lab, and the test tube is cold to the touch when the reaction takes…
a student is performing a reaction in a lab, and the test tube is cold to the touch when the reaction takes place. the student states that it must be exothermic because it became cold. is the student correct? you may begin your answer with: the reaction is... respond in 2 to 3 complete sentences.
Answer
Answer:
The student is incorrect. The reaction is endothermic.
Brief Explanations:
Exothermic reactions release heat, making surroundings warm. Endothermic reactions absorb heat, causing surroundings like the test - tube to feel cold. Since the test - tube is cold, heat is being absorbed, so it's an endothermic reaction.