Aqueous calcium sulfate reacts with aqueous Mercury(I) nitrite to form aqueous calcium nitrite and a precipitate of Mercury (I) sulfate. What is the chemical equation and the type of reaction?

Substance x has a fixed volume, and the attraction between its particles is strong .substance y had widely spread out particles and can be compressed what can most likely be concluded about these substances

How many moles of al3+ ions are in 1.25 moles of al2o3

As changes in energy levels of electrons increase, the frequencies of atomic line spectra they emit