Question

if all of these substances were placed together in the same container, which would end up on the bottom?

choose the correct answer

Explanation:

Step1: Understand density principle

Density determines sinking or floating. Higher - density substances sink.

Step2: Compare densities

Iron has density \(7.8\ \text{g/cm}^3\), water \(1\ \text{g/cm}^3\), magnesium \(1.7\ \text{g/cm}^3\), benzene \(0.9\ \text{g/cm}^3\), aluminum \(2.7\ \text{g/cm}^3\). Iron has the highest density.

Answer:

Iron