Between 2 hexene and 3 hexene, choose only one alkene that should be used to synthesize 3 bromohexane briefly explain why that alkene is chosen.

Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.

In the millikan oil drop experiment they determined that every drop had a charge which was a while number multiple of -1.60x10^-19. if a drop has a total charge of -9.60x10^-19 then how many excess electrons are contained within the drop?

Explain how global warming could have affected yellowstone frog and salamander habitat's, resulting in changes in the populations of these species