1) The half-life of a certain compound is 10 years, how long would it take for that compound to reduce its concentration to 10% ? determines the time to order zero, one and two 2) At 300C the rate constant of the reaction obtaining H 2C=CHCH3 is 2.411010 s-1 and at 400C is 1.16106s-1. What are the values of the activation energy and the Arrhenius preexponential factor for this reaction? Data: R=8.314J/molK 3)Data from a series of experiments on the indicated reaction of nitric oxide with bromine: 2NO(g)+Br2(g) (B) 2NOBr(g), at 273C, are as follows: Determine the rate law for the reaction and calculate the value of the rate constant