A student reacts 13 moles of iron with 21 moles of oxygen according to the following equation:4Fe(s) + 3O2(g) → 2Fe2O3(s)How many moles of iron(III) oxide will the reaction produce? * Can you guys please show work with the answers? Thank you!

You just calculated that the heat of fusion for chloromethane is 6400 j/mol. the heat of fusion for hydrogen is 120 j/mol.? which of the following account for this difference? more than one correcta. chloromethane can absorb more energy at the same temperature. b. hydrogen has stronger intermolecular forces than chloromethane. c. hydrogen molecules can pack more closely than chloromethane molecules. d. chloromethane experiences dipole-dipole interactions. e. chloromethane has a higher molar mass than hydrogen.