4) c - Saturated solution with "undissolved" solute
5a) Increases
5b) Decreases
5c) Causes more empty spaces between base particles of the solvent
6) a) Increase temperature of the solution
b) Increase stirring of the solution
c) Increase the surface area (usually of a solid)
d) How close you are to the saturation point
7) Base particles of solute "go into" the empty space between the base particles of the solvent particles.
8) LESS
9) GREATER
10) Base particles of the solute "get in the way" of the base particles of the solvent.