How many hydrogen atoms are in 1 mol of C3H8

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)

How does the attraction between particles affect the ability of a solvent to dissolve in a substance

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion