In order to convert the number of particles of a substance to the substance's mass, it is necessary first to convert the
number of particles to the number of moles.

Why does the sun appear to be the brightest star in the sky? a- its apparent brightness is much greater than other stars. b- it burns more gas, making it brighter than any other star. c- it is the largest star in the galaxy, so it is the brightest star. d- its relative distance to earth is closer than the other stars.