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What liquid metal is used in a chemical thermometer​

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Answer:

Explanation:

Mercury is used in many thermometers.  

Since Liquids have a definite VOLUME but indefinite shape, it is convenient to use a LIQUID to make a thermometer since the liquid will expand/contract based on HEATING and you can measure the TEMPERATURE with just a ruler. Mercury is a liquid for a large temperature range around room temperature, so it is convenient.



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