Textbook Problem

When 1.00 g of a white solid A is strongly heated, you obtain another white solid, B, and a gas. An experiment is carried out on the gas, showing that it exerts a pressure of 209 mm Hg in a 450-mL flask at 25 °C. Bubbling the gas into a solution of Ca(OH)₂ gives another white solid, C. If the white solid B is added to water, the resulting solution turns red litmus paper blue Addition of aqueous HCl to the solution of B and evaporation of the resulting solution to dryness yield 1.055 g of a white solid D. When D is placed in a Bunsen burner flame, it colors the flame green. Finally, if the aqueous solution of B is treated with sulfuric acid, a white precipitate, E, forms. Identify the lettered compounds in the reaction scheme.