What is a molecule contains the genetic instructions for the development and functioning of all living organisms found in the nucleus of a cell

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?

Which three statements represent the benefits of performing experiments using computer simulations?

Mercury metal is poured into a graduated cylinder that holds exactly 22.5 ml the mercury used to fill the cylinder mass in 306.0 g from this information calculate the density of mercury