12 cm3
Density = Mass/Volume = 120/(12*10*2) grams/cubic cm = 0.5 g per cc.
The surface area of a cube is calculated using the formula (6a^2), where (a) is the length of one side. For a cube with sides of 2 cm, the surface area would be (6 \times (2 \text{ cm})^2 = 6 \times 4 \text{ cm}^2 = 24 \text{ cm}^2). Therefore, the surface area of a 2 cm x 2 cm x 2 cm cube is 24 cm².