Explain why compressional waves are unable to move through vacuum

A compression wave is transmitted by motion or particles. Sound is a compression wave that travels through gases, liquids and solids by moving atoms/molecules/particles which in turn bump into neighbouring atoms/molecules/particles.

In a vacuum there are no atoms, molecules or particles present to transmit the wave.

Can travel through most media including a vacuum. The electromagnetic ... Transverse waves are unable to pass through liquids or gases.