Question

Old thermometers contained very small amounts of mercury. The mercury in the photo has a melting point of -38.8 degrees Celsius. What can you conclude about the melting point of the mercury in old thermometers? *

It's melting point can only be determined when the mercury is burned.
It's melting point changes as the temperature of mercury changes.
It's melting point equals -38.8 degrees Celsius because it is mercury.
It's melting point is less than -38.8 degrees Celsius because its volume is smaller.

Answer 1

••It's melting point equals -38.8 degrees Celsius because it is mercury. |••

Step-by-step explanation:

This one makes the most sense out of the answers.