Question

the freezing point of pure water is 0°c, but adding salt to water changes its freezing point. during a science experiment, patrick finds a solution of salt water that has a freezing point of -6°c. which of these describes the freezing point of the salt water? colder than pure water’s freezing point warmer than pure water’s freezing point

Explanation:

To determine the relationship between the freezing points, we compare the freezing point of pure water ($0^\circ\text{C}$) and the freezing point of salt water ($-6^\circ\text{C}$). In the Celsius scale, lower (more negative) temperatures are colder. Since $-6^\circ\text{C}$ is less than $0^\circ\text{C}$, the salt water's freezing point is colder than pure water's.

Answer:

colder than pure water's freezing point