This density depends on:
- temperature
- concentration of the salt
The density is the same.
This depends on the volume of the teaspoon (which is not a metrological device) and the apparent density of the salt; possible up to 3 g.
It is possible.
yes
No salt has a greater density.
Salt water density really depends on a few different things. The concentration of salt and temperature are the 2 largest factors in determining the density of salt water.
salt water
salt water
The density of a salt water solution compared against the densities of "pure" water and salt provides an approximate value of the ratio of water to salt in the mixture.
Kosher salt
Yes, fresh water has a slightly lower density than salt water.
Salt water's density greater (not heavier) than that of pure water.