keefe8076 keefe8076 05-02-2018 Chemistry contestada An unknown material has a mass of 5.5 g and a volume of 6.5 cm3. what is the density of the material? round to the nearest tenth. a. 8 g/cm3 b. 1.8 g/cm3 c. 0.8 g/cm3 d. 1.2 g/cm3