Which of the following is a characteristic of the sun's radiation? It cannot travel through air.
It cannot travel through space.
It is made up of rays of varying frequencies.
It is made up of rays of the same wavelength.

At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.