5. Students perform a chemical reaction in a glass test tube. They notice that the test tube feels cooler than it did before the reactants were added.

a) Did the students most likely perform an
exothermic or endothermic reaction?

b) What data could the students collect to
confirm the type of reaction?

c) Identify the system and the surroundings
in this investigation.

GIVING BRAINIEST, 5 STARS AND A LIKE