"a group of college students believes that herbal tea has remarkable restorative powers. to test their belief, they visit a local nursing home, visiting with and talking to the residents while serving them herbal tea. after several weeks of this, the nursing home staff reports that the residents are healthier and more cheerful.1.) the subjects in this experiment area) the nursing home staff. b) the nursing home residents. c) the brands of herbal tea. d) the college students."

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

The atomic radius of sodium is 186 pm and of chlorine is 100 pm. the ionic radius for na+ is 102 pm and for cl– is 181 pm. in going from na to cl in period 3, why does the atomic radius decrease while the ionic radius increases? a. the inner electrons in the sodium cation shield its valence electrons more effectively than the inner electrons in the chloride anion do. b. the inner electrons shield the valence electrons more effectively in the chlorine atom than in the chloride anion. c. the outermost electrons in chloride experience a smaller effective nuclear charge than those in the sodium cation do. d. the outermost electrons in chloride experience a larger effective nuclear charge than those in the sodium cation do. e. monatomic ions are bigger than the atoms from which they are formed.

Which scenario is most similar to the type of collision that gas particles have according to kinetic molecular theory