Question

half equation for
Cl2 + Br^-1----> Cl^-1+Br2

Answer 1

First you need to find the n.ox for each element or molecule. You know that che chagde of ione in = to n.ox so Br- and Cl- have n.ox (-1).



You also know than the oxidation number of an atom is zero in a neutral substance that contains atoms of only one element. Thus, the atoms in O2, O3, P4, S8, and aluminum metal all have an oxidation number of 0.

Answer 2

Now you write down two half equation