3.94 g of magnesium metal was used to produce hydrogen gas. Write the balanced chemical equation for this reaction. How many moles of hydrogen gas would be produced by the complete reaction of the
magnesium?

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.