1. Which is true of a radioisotope that is used to date rock formations?
O It has a short half-life.
O It is a plentiful isotope.
O It is a rare isotope.
O It has a long half-life.

Which is a character of nuclear fusion but not nuclear fission

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

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?