Find the density of a material, given that a 5.03 g sample occupies 3.24 ml.

The density (d) of a substance is the ratio of its mass (m) to the amount of space it occupies (v). That is,
                               d = m / v 
Substituting the given values,
                                d = 5.03 g / 3.24 mL = 1.55 g/mL
Therefore, the density of the substance is approximately equal to 1.55 g/mL. 

1.from liquid state to gaseous state is evaporation 3.solid to liquid is melting 5. solid to gaseous state is sublimation 6. gas to solid state is decomposition 7. a change of state is known as the states of matters

You know how the first one if filled up like the objects do the same but with the other categories