How many moles of nitrogen monoxide (NO) are produced from 7.45 grams of oxygen(O2)? 4 NH3 +5 O2 —> 4 NO + 6 H2O

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

Which position represents spring in the southern hemisphere? a) b) c) d)

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5