PLEASE HELP!!

Give the IUPAC name for each of the following

Which statement accurately describes the relationship between air pressure, air density, or altitude? as altitude increases, pressure increases.as altitude increases, air density increases.air pressure and density are lowest at sea level.denser air exerts more pressure than less dense air.

Why is nh3 classified as a polar molecule

How to convert a density of 0.791g/cm3 to lb/ft3