Want this question answered?
Massive Stars.
Very large ones.
The most massive ones. The exact amount of mass requires varies, depending on the type of supernova, and on the element mix of the initial star.
many stars die as a supernova. not really able to determine which types, because they die at random, but if they dont die as supernovas, they just collapse and disappear into one point in the sky.
Unlike the other types of supernovae, Type Ia supernovae generally occur in all types ofgalaxies, including ellipticals and they show no preference for regions of current stellar formation - they can occur anywhere in the Milky Way Galaxy.The reason for this is that Type 1 supernovae occur when the remnant of a small star (a white dwarf) accreets enough mass (by gas capture from, or merger with another star) to exceed the Chandrasekhar limit of about 1.38 solar masses. When this mass is exceeded carbon fusion is reignited in the stellar core and the star explodes and as white dwarf stars are to be found everywhere in Galaxies and Globular clusters, the potential for Type 1 supernovae is universal. That said, obviously you would not expect to find White Dwarf stars in current star forming areas (because the dwarf forms at the end of a stars main sequence life). However Galactic rotation mixes old stars with new stars relatively quickly and this separation rapidly blurs.
Massive Stars.
Stars are expected to end up as white dwarves, neutron stars, or black holes. If you are interested in the stages before that (when the star still produces power), that include red giants, and supernovae.
No, but some stars can end their lives by becoming a black hole.
They are not. A supernova is an explosion of a star. Blue stars usually end their lives in such explosions.
Heavy stars go supernova at the end of their lives.
No. Supernovas are cataclysmic eruptions from massive stars that have come to the end of their lives. See related questions
They are not. A supernova is an explosion of a star. Blue stars usually end their lives in such explosions.