Paper towel absorbs water is a physical or chemical change?

Why is silver chloride is an ionic compound

What is true for a substance that releases energy

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