1. to form a solution,
one substance must dissolve in another
a solid must dissolve in a liquid
the solvent must be water
a gas must dissolve in a liquid
2.a salt is dissolved in water, which has a boiling point of 100°c. the boiling point of the solution will be
greater than 100°c
less than 100°c
exactly 100°c
exactly 0°c
3.during the formation of a solution, energy is
either released or absorbed
neither released nor absorbed
released only
absorbed only