Lewis has two spheres made of different substances. sphere a has a volume of 19.4 cubic centimeters and a mass of 24.0 grams. sphere b has a volume of 17.0 cubic centimeters and a mass of 13.6 grams. lewis knows that the density of water is 1.0 gram/cubic centimeter. if lewis places both spheres in a tub of water, which will float? a sphere a will float because it is less dense than sphere b. b sphere a will float because it has more mass than water. c sphere b will float because it has less mass than sphere a. d sphere b will float because it is less dense than water.