If a hospital needs 6 grams of Uranium that has a half life of 2 hours, how much should they order if it takes 8 hours for the delivery to reach the hospital?

48 grams
12 grams
24 grams
192 grams
96 grams

Which of the following statements is false regarding aromaticity? a. the compound must be cyclic b. the compound must be fully conjugated c. the compound must be planar d. the number of electrons in the pi system must satisfy the hückel 4n+2 rule e. the compound must have a neutral charge

Which of the following is not one of the steps in the scientific method a. hypothesize b. summarize c. analyze d. familiarize

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