Employees study and test for certifications in purchasing, inventory control, and logistics because the certificates . (Select all that apply.) focus on the current best practices of the profession

may result in a pay raise

are an easy way to learn on the job

are highly specialized training to help do a better job

A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.