How are the elements synthesized inside the star, up to and including iron, ultimately dispersed into the galaxy?

Answer

The supernova shockwave blasts the star's outer layers, ejecting newly synthesized material at high speeds.

The violent expulsion during the supernova explosion scatters the material forged in all the star's burning stages, enriching the interstellar medium with the complex chemistry required for new celestial bodies.

How are the elements synthesized inside the star, up to and including iron, ultimately dispersed into the galaxy?
Elementastronomystarmassnucleosynthesis