What is the voltage of the electrochemical cell written as: cu(s) i cu? t(aq) il mg2+(aq) i mg(s)? - apex a. 2.03 v b. -2.71 v c. 2.71 v d. -2.03 v

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation:

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