What is atomic mass unit?

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?

When water dissolves sugar, which process is not involved? o dissociation o hydration o surface area of the solute increases sa

In a heat of an engine, if 700 j enters the system, and the piston does 400 j of work what is the final internal (thermal) energy of the system if the initial energy is 1,500 j