# A rock sample has a mass of 16 grams and a volume of 8 cubic centimeters. When the rock is cut in half what is the volume and density of each piece?

$\rho = \text{Mass"/"Volume} = \frac{16 \cdot g}{8 \cdot c {m}^{-} 3}$ $=$ ??*g*cm^-3
And the volume of each piece is ??*cm^3.