Which one of the following substances will float in gasoline, which has a density (d) of 0.66 g/ml? mercury (d = 13.6 g/ml) table salt (d = 2.16 g/ml) aluminum (d = 2.70 g/ml) balsa wood (d = 0.16 g/ml) sugar (d = 1.59 g/ml)

The answer is balsa wood

Explanation:

In order an object can float in a liquid, is necessary that its density be lower than the liquid in which it is.

In this example, the liquid (gasoline) has a density of 0.66 g/ml and the all substances that we are studying have a density higher than gasoline, then, they are not goint to float but balsa wood which density is lower than gasoline.

gasoline's density = 0.66 g/ml

balsa wood's density = 0.16 g/ml

the answer is minerals.