What is the average atomic mass when the isotopes are: 20% 112In, 50% 114In, 25% 116In and 5% 117In?

Measuring which physical property is most likely to produce the most precise results when trying to identify a substance

Using the periodic table, complete the table to describe each atom. type in your answers. a ? b? c? d? e? f?

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