In the reaction c7h16+ o2 --> 8h2o + 7co2, what coefficient should be replaced in front of o2 to balance the reaction? 7. 8. 11. no coefficient is needed.

Using data from seismic waves, geologists have learned that earth’s interior is made up of several

The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.

Which scenario is most similar to the type of collision that gas particles have according to kinetic molecular theory