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: ...

Commercial heat packs (containing iron and water, or supersaturated sodium acetate) and cold packs (various ammonium salts) can be used to show exo- and endothermicity. Heat packs that contain iron ...

A white ring of solid ammonium chloride forms where the two gases meet inside the tube. If necessary, protect non-glass surfaces of an overhead projector with clear plastic. Dip one Q-tip into ...

Number of skin reactions to 2% concentration at 2-day scoring* 0/183 0/183 0/183 0/183 HEQ = di-(hardened tallow fatty acid) ester of 2,3-dihydroxypropyl-trimethyl ammonium chloride; TEA-Quat ...

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 ...