The decay rate of an isotope is initially R0, but after one half-life has gone by, the rate is R0/2. At the end of the NEXT half-life, what will the decay rate be

4. propanol and isopropanol are isomers. this means that they have a) the same molecular formula but different chemical properties. b) different molecular formulas but the same chemical properties. c) the same molecular formula and the same chemical properties. d) the same molecular formula but represent different states of the compound