Write the reaction equation: KBr → Br₂ → HBr → AgBr

To carry out the above chain of transformations, we need to carry out the following reactions.

1) Chemical reaction and equation As a result of the reaction, potassium chloride and pure bromine are formed. The molecular equation of the reaction is as follows:

2 KBr + Cl2 = 2 KCl + Br2
2) The reaction of interaction of substances such as bromine and hydrogen. As a result of the reaction, hydrogen bromide is formed. The molecular equation of the reaction is as follows:

Br2 + H2 = 2 HBr
3) The reaction of interaction of substances such as hydrogen bromide and silver nitrate salts. As a result of the reaction, a silver bromide salt and nitric acid are formed. The molecular equation of the reaction is as follows:

HBr + AgNO3 = AgBr + HNO3.