why do we need to use moles when we try to determine amounts of reactants and products in a reaction?

This large tectonic plate is bounded on three sides by whats know as the ring of fire. what is the name of this tectonic plate? a) pacific plate b) eurasian plate c) north american plate d) indo- australian plate plz it's science but there's no option for science so i picked chemistry

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Which common material is an example of a polymer? (25 pts) a. steel b. plastic c. petroleum d. rubbing alcohol