Three liquids of different densities are mixed. Because they are not miscible (do not form a homogeneous solution with one another), they form discrete layers, one on top of the other. Sketch the result of mixing carbon tetrachloride $\left(\mathrm{CCl}_{4}, d=1.58 \mathrm{g} / \mathrm{cm}^{3}\right),$ mercury $(d=$
$\left.13.546 \mathrm{g} / \mathrm{cm}^{3}\right),$ and water $\left(d=1.00 \mathrm{g} / \mathrm{cm}^{3}\right)$