Yes; ex.: stearic acid, but many other exist.
Uranium can be any temperature. At room temperature, it is a solid metal.
No.See the Related Questions link to the left for more information about how to determine if any molecule is polar or not.
Any of the above based on the temperature. Solid at room temperature.
It becomes a silvery white solid at room temperature.
Gold is a solid at room temperature and at any temperature below 1064.18 °C  (1947.52 °F).
No, oxygen is a gas at room temperature. (Also, oxygen is a nonmetal at any state)
all substances can be in any state but at different temperatures but at room temperature yes it is a solid
Nonmetals can be solid, liquid and gas at room temperature.
Niobium is a solid at standard temperature and pressure and in any room except a VERY hot one.
No. (It's available in any food store.)
The freezing point (more commonly referred to as the melting point) of Holmium is: 1734 K or 1461 C or 2662 F.
Any lipid that is hydrogenated. Having single carbon carbon bonds lets all the hydrogen bond and allows the lipid to remain a solid at room temperature.