Which of the following apply to gases? select all that apply.

-gases mix faster than solids or liquids.

-gas particles can move like solids and liquids along with translational motion.

-gas collisions are elastic.

-gases with larger molecular weights diffuse slower than gases with lower molecular weights.

-gases with larger molecular weights diffuse faster than gases with lower molecular weights.

Gas particles can move like solids and liquids along with translational motion.

Gas collisions are elastic.

Explanation:

The gases take the form of the container that contains them, are compressible, expandable and diffuse in the medium that contains them.

Elastic collisions occur against the container that contains them in the case of gases, without loss of kinetic energy in said interaction.

The atoms and molecules of gases are in constant motion, unlike liquids and solids.

law of conservation of matter

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