I don’t understand this, I need help, if you don’t know, just scroll past this. I only need the first two boxes.

What is important to study for nios grade 12 chemistry? i have only one month left.

Ineed ! i have no clue how to do this problem.

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