The answers are :
1 - F
2- T
They will mold into different shapes
In pure water, all of the molecules in the liquid are water molecules so the mole fraction is 1 (100 % H2O, 55 mol/L). In sea water, the concentration of water molecules in the solution is less than that of pure water so the vapor pressure of sea water is also lower.
Sodium, Atomic mass: 22.989769 g
You can see in a periodic table
