Top topic this week
Questions asked by users might not always be phrased in the clearest way.
Chlorine (Cl) is more reactive than bromine (Br) due to its smaller atomic size and higher electronegativity. In a reaction between chlorine and bromine, chlorine would typically displace bromine from its compounds. For instance, if chlorine gas is bubbled through a solution of sodium bromide, chlorine would react with bromide ions to form chlorine ions and elemental bromine. The reaction can be represented as:
Cl2(g) + 2NaBr(aq) → 2NaCl(aq) + Br2(l)