Areddish layer of rust can form on old iron nails and bikes in this chemical reaction iron reacts slowly with oxygen in the air the chemical name for rust is iron oxide what are the reactant(s) and product(s) of this reaction ? , write down the equation , in words , for the formation of rust

Carbon is allowed to diffuse through a steel plate 15 mm thick. the concentrations of carbon at the two faces are 0.65 and 0.30 kg c/m^3 fe, which are maintained constant. if the preexponential and activation energy are 6.2 x 10-7 m2 /s and 80,000 j/mol, respectively, compute the temperature at which the diffusion flux is 1.43 x 10^-9 kg/m^2 -s.