Please help and include an explanation if you can, thank you!!

What is the number of moles of chemical units represented by 9.03x10^24? and how do i show work? (dumb it down )

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit

Which is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.