Scientists working in a lab add ammonia \( \left(\mathrm{NH}_{3}\right) \), a gas with a very strong odor, to a seemingly empty sealed jar. Soon after, they notice that a white, odorless solid has for th, t the bottom of the jar. Upon further investigation, they identify the substance as ammonium chloride ( \( \left.\mathrm{NH}_{4} \mathrm{Cl}\right) \).
Examine the diagram below.
Container ?7?
Ammonia \( \mathrm{NH}_{3} \)
Ammonium chloride \( \mathrm{NH}_{4} \mathrm{Cl} \)
The scientists claimed that the sealed jar was not empty before they added ammonia because a chemical reaction occurred,
