Following the three reasons for used mercury in a barometer liquid.
The density of mercury is high as compared to other fluids.
Mercury is metal and has a shining quality, clearly and correctly highlighting its reading.
Mercury, having comparatively lower specific heat and a good conductor of heat, could come to the same atmosphere temperature more quickly.
Final Answer:
A barometer is a scientific instrument used to measure atmospheric pressure. Mercury is a highly dense liquid, metal and good conductor of heat used as a barometer liquid.
The method used to balance the reaction is called trail and error method
The given solution also comprises of the states of reactants and products
