Consider the half reactions below for a chemical reaction. 2 Equations: First: upper M g right arrow upper M g superscript 2 plus (a q) plus 2 e superscript minus. Second: 2 upper H superscript plus (a q) plus 2 superscript plus right arrow upper H subscript 2 (g). What is the overall equation for this chemical 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.