Question

which would increase the rate of dissolving salt into water?
low temperature
little to no agitation
more surface area
darker colors

Explanation:

The rate of dissolving a solid (like salt) in a liquid (water) is increased by factors such as higher temperature, agitation, and more surface - area of the solid. Higher temperature provides more kinetic energy for the particles to move and interact. Agitation helps in spreading out the dissolved particles and bringing fresh solvent to the undissolved solid. More surface - area exposes more of the solid to the solvent. Low temperature, little to no agitation, and darker colors do not increase the dissolving rate.

Answer:

C. more surface area