Which of the following best explains the relationship between molecules and atoms?

Iron (3) oxide will decompose in the presence of hydrogen gas and heater to produced iron and digydrogen monoxide white a balanced chemical equation

Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false