Methane is a compound which is 75% carbon, by mass, the balance being hydrogen. if a sample of methane weighs 24 g, what mass of hydrogen does it contain?

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.