1. Stirring increases the rate of solution
by increasing the rate of between
the solvent and the solute.
A. Collision
B. Evaporation
C. Sublimation

2 A hot solvent helps a solid dissolve faster because an increase in that also increases the rate of collisions

1) The correct answer is A. Collision

2) A hot solvent helps a solid dissolve faster because an increase in kinetic energy that also increases the rate of collisions

Explanation:

When a solute is added into a solvent and stirred, the solute particles get distributed to all parts of the solvent as a result of stirring.

More collisions occur between the solute and the solvent due to stirring. This increases the rate of dissolving.

When a solvent is heated, then the kinetic energy would increase and the atoms will collide with a much greater force. As a result, ore solute will be able to dissolve in the solvent.

i'm pretty sure its b i might be wrong though!