In the reaction H, H+H, there is an average energy change of 436 kJ/mol. This is an
(endothermic/exothermic) reaction
which means that energy is being
(absorbed/released) during the
overall reaction.

Select the correct answer. why are scientific models important in the study of science? a. they always involve critical mathematical calculations. b. they scientists understand complex ideas and objects that aren’t easy to handle. c. they enable scientists to popularize their work in society. d. they are required when conducting any peer review process. e. they are necessary for turning a hypothesis into a law.