Question

the freezing point of a liquid is the temperature at which it freezes, or changes to solid form. mariana is doing a science experiment to see how adding different ingredients to plain water changes its freezing point. adding sugar lowered the freezing point of marianas water sample to -2.1°c. adding the same amount of salt lowered the water samples freezing point to -2.7°c. which of marianas mixtures has the lower freezing point? sugar water salt water

Explanation:

Step1: Compare the freezing - point values

We have the freezing - point of sugar water as $- 2.1^{\circ}C$ and that of salt water as $-2.7^{\circ}C$.

Step2: Analyze negative numbers

When comparing negative numbers, the number with a larger absolute value is smaller. The absolute value of $-2.1$ is $2.1$ and the absolute value of $-2.7$ is $2.7$. Since $2.7>2.1$, we have $-2.7 < - 2.1$.

Answer:

salt water