The moon appears larger than most of the planets in our solar system because ?

Calculate the change in entropy if br2(l) is converted to br2(g). s° for br2(l) = 152.2 j/(mol•k) s° for br2(g) = 245.5 j/(mol•k) s° for br(g) = 175.0 j/(mol•k)

Which substances have the lowest melting points: ionic covalent, or metallic

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?