Question

at 25°c, a brass key has a density of 8.40 grams per milliliter, and a salt water sample has a density of 1.02 grams per milliliter. what will happen when the brass key is placed in a beaker containing the salt water? the brass key will sink to the bottom of the beaker. the brass key will float on the surface of the salt water.

Explanation:

An object sinks in a fluid if its density is greater than the fluid's density. The brass key's density ($8.40\ \text{g/mL}$) is higher than the salt water's density ($1.02\ \text{g/mL}$).

Answer:

The brass key will sink to the bottom of the beaker.