2.5 n of the following most closely represents the weight of the aluminum block .
How much "stuff" is contained in a specific quantity of space is determined by its density. For instance, a brick of the harder, lighter metal gold (Au) will be thicker than a slab of the heavy element lead (Pb) (Au). Styrofoam blocks are less dense than bricks. Mass per given volume serves as its definition.
Density is an important concept because it allows us to forecast which molecules will float but which will dive in a liquid. An object will frequently float as long as its density is less than that of the liquid.
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