Gaseous bromine reacts with aqueous solution of potassium bromide to form liquid bromine and aqueous solution of potassium chloride; the equation of reaction is as follows:
Cl2 + 2KBr = Br2 + 2KCl.
This chemical reaction is an example of displacement reaction.
C! They both have the same number of electrons in the outer shell
A element mixture (key word: mixture) due to the mixture containing 2 different types of elements it can be said that it’s highly likely that the mixture was not a compound but instead of a mixture due to mixture meaning more than 1 material. Hopes this help!