Question

select the temperature scale that matches each boiling point for water. water boils at 373
water boils at 100
water boils at 212

Explanation:

Step1: Recall temperature scale conversions

The boiling point of water in Kelvin ($K$) is calculated as $^{\circ}C + 273.15$. When $^{\circ}C=100$, $K = 100+273=373$.

Step2: Identify Celsius scale

By definition, water boils at $100^{\circ}C$ at standard atmospheric pressure.

Step3: Convert Celsius to Fahrenheit

The formula to convert Celsius ($C$) to Fahrenheit ($F$) is $F=\frac{9}{5}C + 32$. When $C = 100$, $F=\frac{9}{5}\times100+32=180 + 32=212$.

Answer:

Water boils at 373: Kelvin ($K$).
Water boils at 100: Celsius ($^{\circ}C$).
Water boils at 212: Fahrenheit ($^{\circ}F$).