When 2.3 miles of C6H6 react, how many miles of CO2 are produced?

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit

Which formula equation represents the burning of sulfur to produce sulfur dioxide? s(s) + o2(g) 4502(9) 2h2s(s) + 302(g) —> 2h20(0) + 2502(9) 4fes2+1102 —> 2fe2o3 + 8502 2802(g) + o2(9) v205 , 2503(9)