The combustion of propane (c3h8) in the presence of excess oxygen yields co2 and h20: c3h8 (8) + 5o2 (g) - 3co2 (s) + 4h20 (8) when 2.5 mol of o2 are consumed in their reaction, a) 3.0 b) 7.5 c) 1.5 mol of co2 are produced. d) 4.2 e) 2.5

Why is the vapor pressure of a warm lake higher than the vapor pressure of a cold lake? o a. warm water has a greater heat of vaporization. ob. warm water evaporates more quickly. cool water evaporates more quickly. od. cool water has a greater heat of vaporization.

Your friend offers to show you an intrusive igneous rock. which of the following would you expect to see?

Butadiene undergoes a reaction at a certain temperature in the gas phase as follows: 2c4h6(g) --> c8h12(g) the following data were collected for this reaction: time (min) [c4h6] (m) 0 0.36 15 0.30 30 0.25 48 0.19 75 0. determine the order of the reaction and the rate constant. 1st order and k = 4.3x10 -4 s-1 1st order and k = 2.3x10-4 s-1 2nd order and k = 4.3x10-4 s-1 2nd order and k = 2.3x10-4 s-1 zero and k = 4.3x10-4 s-1