Problem- Under certain circumstances, carbon dioxide, CO2(g), can be made to react with hydrogen gas,H2(g), to produce methane, CH4(g), and water vapor, H2O(g): CO2(g)+4H2(g)-->CH4+2H2O(g)

CO2(g)+4H2(g)?CH4(g)+2H2O(g)

How many moles of methane are produced when 85.1moles of carbon dioxide gas react with excess hydrogen gas?

Express your answer with the appropriate units. For example, write the unit moles as mol.

Using textbook reference solve the reactions given in above problem