Which tools should be used to record the most complete data about a gas?

Which metal exist in liquid state and can be cut with knife ?

4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.

How can parts of a solution be separated by chromatography?