ammonium nitrate and ammonium sulfate – can be identified by heating a solution of the ions with sodium hydroxide. This reaction produces ammonia gas, as shown in the ionic equation below: ...

It also shows that ammonia and hydrogen chloride (colourless gases) can react to form ammonium chloride again. This slideshow shows a reversible reaction involving white anhydrous copper(II ...

This study uses correlated operando microscopy and spectroscopy to examine Cu2O catalyst dynamics in nitrate electroreduction ...