Question

write the letter of the correct answer on the line at left.

1. while making chicken soup for his family one evening, luis added the amount of salt the recipe called for. after tasting the soup, he decided the seasoning was correct. then he let the chicken soup simmer for two hours to blend the flavors. but when he served the soup, it was too salty. what happened to the soup to make it so salty?

a. he added too much solvent.
b. he added something else besides salt.
c. some of the chicken was saltier than the rest of it.
d. some water evaporated and concentrated the salt.
use the information below to answer questions 6 and 7.
on a hot day, ava got herself a carbonated beverage. she knew from her science class that carbonated drinks had carbon dioxide in them.

Explanation:

When the soup simmers, water (a solvent) evaporates. Since the amount of salt (solute) remains the same but the amount of solvent (water) decreases, the concentration of salt increases, making the soup saltier. Option A is incorrect as adding more solvent would dilute, not concentrate. Option B is not indicated in the problem. Option C is not relevant as the problem is about evaporation - concentration, not chicken saltiness variation.

Answer:

D. Some water evaporated and concentrated the salt.