Which statements are true about physical changes? Select all that apply. A. Physical changes are easily reversible.
B. An example is when wood burns and loses mass.
C. This is when atoms of an object change their state.
D. This is when there are changes between being a solid, liquid, or gas

a

Explanation:

because physical changes are reversible while chemical changes are irreversible

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