Gases mix with gases easily to form homogeneous mixtures. liquids do not always mix together and form homogeneous mixtures. this is because gases have large a) particles b) molecular masses c) spaces between molecules d) attractions for other molecules

C/gases have the large space space between molecules

Explanation:

Gases can make homogenous mixtures with them selves more than liquids because the space between the molecules of gases is larger than the space between the molecules of the liquid.

the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3