How many oxygen atoms are present in 2.28 moles of nitric acid, HNO3 ?
a 4.12 x 1024 O atoms
b 7.29 x 1023 O atoms
c 4.58 x 1023 O atoms
d 1.37 x 1024 O atoms

part 1: describe the mass and the surface temperature of dwarf stars.

part 2: explain using complete sentences where on the hr diagram you would expect to find a dwarf star based on its physical properties.

part 1: the mass of a dwarf star is very small and the surface temperature of dwarf stars are high and they have the lowest absolute brightness.

part 2: on the hr diagram you would expect to find a dwarf star based on its physical properties at an absolute brightness of -2 to -4

hope this