If a meteorologist says that the air pressure is getting lower, what would you expect to see happen to Torricelli's mercury barometer?

Ineed with a, b, c, d, and e on the long answer

100mg magnesium reacts with 20ml of 1.0m hcl

Mercury turns to vapor at 629.88 k how much heat is lost 175 g of mercury vapor at 650 current condenses to a liquid at 297 ca mercury turns to weber at 629.88 kelvin how much he is lost 175 g of mercury vapor and 650 coming condensers to liquidate 297 kevin