When balancing an equation, you can

a. alter subscripts

b. change the identities of the products

c. change the identities of the reactants

d. write in coefficients

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.

If anyone who can me with this hw? i would really appreciate it

The force it would take to accelerate an 900-kg car at the rate of 6m/s2