. The density of diamond is 3.51 g/mL and the density of lead is 11.3 g/mL. If equal masses of diamond and lead were transferred to equal volumes of water in separate graduated cylinders, which graduate cylinder would have the highest volume reading?

Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ