What mass of KO2 produces 235g of O2?

Many ionic compounds and a few highly polar covalent compounds are because they completely ionize in water to create a solution filled with charged ions that can conduct an electric current.

Mercury turns to a vapor at 629.88 k. how much heat is lost when 75.0 g of mercury vapor at 650 k condenses to a liquid at 297 k?

In in , is to a 28.4-g (1-oz)−23.0 °c to −1.0 °c?