How do I balance this equation? Cr2O3(s)+C(s)→Cr(s)+CO(g)

Stage in which a typical star has completely stopped fusion

Find the mass, in grams, of 5.00*10^23 molecules of f2

Which is a characteristic of the electron sea model for metallic bonding? molecular orbitals overlap to produce bands. electrons flow easily between metal nuclei. electrons are in fixed positions in the orbitals. atomic nuclei are arranged in an irregular pattern.