Question

fred has a large piece of sugar that is not dissolving in his drink. how could he get the sugar chunk to dissolve faster?
by placing it in the refrigerator
by breaking it up into smaller pieces
by letting it dissolve naturally without agitation
by adding a larger piece so the smaller one will dissolve

Explanation:

Increasing the surface - area to volume ratio of a solute increases the rate of dissolution. Breaking the sugar into smaller pieces increases its surface area, allowing more of the sugar to interact with the solvent at once, thus speeding up dissolution. Placing in the refrigerator lowers temperature which decreases dissolution rate. Letting it dissolve naturally without agitation is slow. Adding a larger piece won't make the smaller one dissolve faster.

Answer:

by breaking it up into smaller pieces