## Chemistry and Chemical Reactivity (9th Edition)

a) Water and carbon dioxide. b) $CH_4+2\ O_2\rightarrow CO_2+2\ H_2O$ c) Number of moles of methane: $25.5\ g\div 16.04\ g/mol=1.59\ mol$ From stoichiometry: $1.59\ mol\times2/1\times 32.00\ g/mol\ Fe=101.7\ g\ O_2$ d) The same as the reactants: $25.5\ g+101.7\ g=127.2\ g$