Balancing Complete Redxo Reactions. I am not sure how I am suppose to start anything. Even the Half Reactions. BrO3^1- + Br^1- + H^1+ --> Br2 + H20.

I need to know all the steps on how to do half reactions & I think I should be good.

To balance a redox reaction, you can follow these steps:

1. Start by breaking down the overall reaction into two half-reactions, one for the oxidation and one for the reduction. In this case, we can identify the oxidation half-reaction as the one where BrO3^- is being reduced to Br2, while Br^- is being oxidized to Br2 in the reduction half-reaction.

2. Write out the two half-reactions, showing all the species involved and their oxidation states. The oxidation state tells you how many electrons are gained or lost by each atom or ion.

Oxidation half-reaction:
Br^- → Br2

Reduction half-reaction:
BrO3^- → Br2

3. Balance the elements in each half-reaction first, other than oxygen and hydrogen. In the oxidation half-reaction, there is only one atom of Br on each side, so it is already balanced. In the reduction half-reaction, there is one Br atom on the product side but none on the reactant side, so we need to balance it by adding a coefficient of 2 in front of Br2. Now the reduction half-reaction is balanced as follows:

BrO3^- → 2Br2

4. Balance the oxygen atoms next. In the oxidation half-reaction, there are no oxygen atoms present. In the reduction half-reaction, there are three oxygen atoms on the reactant side but none on the product side. To balance this, add 3H2O on the product side:

BrO3^- → 2Br2 + 3H2O

5. Finally, balance the hydrogen atoms. In the oxidation half-reaction, there are no hydrogen atoms. In the reduction half-reaction, there are six hydrogen atoms on the product side but none on the reactant side. To balance this, add 6H+ on the reactant side:

BrO3^- + 6H+ → 2Br2 + 3H2O

Now, you have balanced both the oxidation and reduction half-reactions.

Remember, when balancing redox reactions, it may be necessary to adjust coefficients and add H+ or H2O to balance oxygen and hydrogen atoms. Additionally, you may need to balance charges by adding electrons (e^-) to one or both of the half-reactions.