How many moles of methane(CH4) are in 7.31×10^25 molecules?

How will the emission of an alpha particle affect the atomic number of an atom

How many moles of co2 are produced during the complete combustion of 3.6 moles of c2h6

Which activity describes an application of topographic maps? check all that apply. recreation, such as camping and hiking engineering, such as the construction of roads and buildings science, such as mapping stars in the sky business, such as analyzing population centers science, such as analyzing surface features