Question

________is the silver liquid in a tube of thermometer. It expands when the​

Answer 1

Answer:

Mercury

Step-by-step explanation:

It is a liquid which is a metal and liquid at room temperature

Answer 2

REQUIRED ANSWER:-

Mercury is the silver liquid in a tube of thermometer.

WHY?

Mercury is the only one in liquid state at room temperature. It's used in thermometers because it has high coefficient of expansion. Hence, the slightest change in temperature is notable when it's used in a thermometer. It also has a high boiling point which makes it very suitable to measure higher temperatures. It also doesn't sticks to the glass walls of the thermometer.

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