A cotton swab is dipped into concentrated hydrochloric acid (producing hydrogen chloride gas) while a second on is dipped into concentrated aqueous ammonia (producing ammonia gas). Both cotton swabs ...

A cotton swab is dipped into concentrated hydrochloric acid (producing hydrogen chloride gas) while a second on is dipped into concentrated aqueous ammonia (producing ammonia gas). Both cotton swabs ...

This video demonstrates a simple chemical reaction between ammonia (NH3) and hydrochloric acid (HCl) to form the salt ammonium chloride (NH4Cl). When the reaction takes place between the two reactants ...

Here’s a demonstration common in chemistry classes. Two chemicals, hydrochloric acid and ammonia, are placed next to each other. They don’t touch. But one suddenly starts smoking. What happened? This ...