A metallic solid ingot has a mass of $14\mathrm{.}7$ grams. It was loaded into a graduated cylinder containing $40\mathrm{.}0mL$ or water. Upon addition of the ingot, the volume of the water and the ingot was $41\mathrm{.}6mL.$ What is the density of the ingot?

Assuming the solid ingot in question $1$ is polonium $($Po$,$ element $84)$ which packs in a primitive cubic unit cell structure calculate the packing efficiency of the unit cell?

Which hydrocarbon would be more viscous, heptane $(C_7{H}_{16})$ or dodecane $(C_{12}{H}_{26})?$ Explain your reasoning.

Based on the below structural formula, do you expect the molecule to be miscible with water? Explain your reasoning.