The distance between the and marks on a 0°C 100°C mercury-in-glass thermometer is 20 cm. When the?

thermometer bulb is placed in a mixture of ice and salt, the mercury level is 4 cm below the 0°C mark.


The temperature of the mixture is





A. +20°C.


B. +5°C.


C. −5°C.


D. −20°C.

The distance between the and marks on a 0°C 100°C mercury-in-glass thermometer is 20 cm. When the?
D. -20°C.





The difference between 0 and 100 is 100. 100 divided by 20 is 5. This means that every centimeter is equal to 5 degrees celcius. this also means that 4cm down from 0 equals -20Celsius.