<span>Boyle's Law is k = PV so
Initial k = 13.0 L x 4.0 atm = 52 L atm
Final kf = 6.5 L x 8 atm = 52 L atm
The gas obeys Boyle's Law
The answer with two significant figures separated by a comma is k = 52, kf = 52.</span>
It is fresher because of new transportation techniques and refrigerated trailers.
The halide ions are referring to the elements F, Cl, Br, I and At with valence of -1. After knowing this, you can get the answer. So the right answer is (1) iodine.
