[Maximum number: 1]
Hydrogen chloride gas, HCl , reacts with ammonia gas, , to form solid ammonium chloride.
The apparatus is set up as shown.
After a few minutes, solid ammonium chloride forms where the two gases meet.
The experiment is repeated using hydrogen bromide, HBr , in place of hydrogen chloride.
How far along the tube does the solid ammonium bromide form?
