Describe the test of bromide ion in presence of dilute nitric acid and silver nitrate solution, followed by the addition of dilute ammonia solution and then concentrated ammonia solution.

Copy and complete the equation below, including state symbols.

${\mathrm{AgNO}}_3\left(\mathrm{aq}\right) + \mathrm{NaBr}\left(\mathrm{aq}\right) \to$

Represent the union of two sets by Venn diagram for each of the following.

$X=\{x | x$ is a prime number between $80$ and $100\}$

$Y=\{y | y$ is an odd number between $90$ and $100\}$

Explain the chlorine water test for bromine.

${\mathrm{Cl}}_2\left(\mathrm{aq}\right) + 2\mathrm{NaBr}\left(\mathrm{aq}\right) \stackrel{}{\to }2\mathrm{NaCl}\left(\mathrm{aq}\right) + {\mathrm{Br}}_2\left(\mathrm{aq}\right)$