What will be the lowest possible temperature achieved after dissolving 50g NaCl in 1kg of ice water? (i=2) What will be the molarity of this solution after the ice all melts?

That result from subduction of oceanic plates beneath lighter continental plates. most of the earth's volcanoes are located around the pacific ring of fire because that the location of most of the earth's subduction zones.

You would do 1500/4 and the answer is 375

There is no reason to think the results are biased or not conducted properly but you should not assume the results are correct just because they were done in a laboratory so the answer would be c. it is likely to be reliable because the results support the conclusion presented.

The closer the atoms are to becoming ionic the more highly dense the negatively charged side gets.