When CuCl2 (Copper Chloride,) a solid powder, is reacted with Aluminum (Al), a solid, in a solution, what would you expect to be left in the vial? Hint: A single replacement reaction should happen. Select one:
a. Oxygen
b. Pure Aluminum
c. Carbon Dioxide
d. Pure copper

D pure copper

Explanation:

This also is associated with the electrochemical series

AL is more reactive than copper and it will be displaced out of the solution. Leaving Copper to be left as a solid in the reaction.

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