Question

The density of corn syrup is 1.38 g/cm3.

Which substance will float in corn syrup?


graphite (2.16 g/cm3)
glycerin (1.26 g/cm3)
copper (8.9 g/cm3)
silver (10.5 g/cm3)

Answer 1

helium has a density lower then air, so it goes up, it "floats" on air. he continues to go up, because he only gets air where he passes.
anything with higher density then corn syrup will go up of corn syrup, it will "float" on corn syrup. why will it float on corn syrup? because air's density is lighter then any compound above. so air stays above.
the answer is anything with density lower then corn syrup will float on it.

Answer 2

Glycerin

Answer 3

You've got the right answer - Archimedes' principle states that if something has the same weight as the liquid it displaces then it will remain at equilibrium in that liquid (corn syrup in this case). The greater densities of the other materials suggest that they will have greater weight than the liquid they displace and so will sink under gravity.

Answer 4

glycerin

Answer 5

correction edit: "(...) lighter then any compound under (the air). so air stays above.(...)"