Table salt and kosher salt are both 39% sodium by weight.
No, kosher salt is identical in mineral content to table salt.
Kosher salt is sodium chloride.
The same mass of salt, both are sodium chloride.
No, they are equivalent.
The percentage of sodium is 39,666 % in NaCl.
An identical amount because they are both sodium chloride.
Any difference, both are sodium chloride.
Epsom salt is magnesium sulfate heptahydrate and kosher salt is sodium chloride.
Kosher salt is the ionic compound sodium chloride, which is formed by ionic bonding.
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.
Almost all salt is kosher by default. The only issue would be if non-kosher additives such as flavourings were added to the salt. Sea salt is healthier than traditional table salt as the sodium level in sea salt is far lower.
Refined salt (sodium chloride) is a pure substance; but kosher salt is only an error because salt is an inorganic product..