All liquids have a density associated with them. Such as water at 4c I think, sould weigh 1 gram per millilitre, therefore a litre should weigh a kilogram. This varies with other solvents
No. The mass of one liter of feathers is not greater than the mass of 1 liter of nails. The mass of 1 liter of nails is greater than the mass of 1 liter of feathers. That's why 1 liter of nails is heavier than 1 liter of feathers.
mass is to grams
That all depends on what substance fills the liter of space.A liter of air has a small amount of mass in it (very few grams).A liter of water has more mass in it (more grams).A liter of concrete has even more mass in it (lots of grams).An empty liter has no mass in it (no grams).
Mass
1 liter of H2O at 4 degrees C has a mass of exactly 1000 grams 1 liter of H2O at 4 degrees C has a mass of exactly 1 kilogram
volume
one liter of iron
Water.
Mass. NOT weight.
Mass
The answers to your questions, in order, are yes and no. A liquid liter is a liquid liter, regardless of what liquid it is a liter of. However, lead is (Obviously) denser than apple juice, so it has more mass.
A liter of water has approximately a mass of one kilogram.