two reactants are mixed in a test tube, and the test tube becomes very warm. this is a sign of a transfer of…
two reactants are mixed in a test tube, and the test tube becomes very warm. this is a sign of a transfer of ______ taking place as a result of a chemical change.
Answer
Brief Explanations:
When a chemical reaction causes a test - tube to become warm, it indicates heat transfer. Chemical reactions can either release or absorb energy, and in this case, heat is being released as a result of the chemical change.
Answer:
heat