Chemistry, 10.11.2020 07:40 Lalagrl

Billy expands when his fuel starts to run out. He isn't as hot on the surface anymore, which makes him red, and he is many times larger
than he used to be. He is now called a red giant.
What does Billy do now? (Billy has 1 stellar mass.)
expands even more
contracts to form a white dwarf
has a supernova

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Billy expands when his fuel starts to run out. He isn't as hot on the surface anymore, which makes...