chemistrybalanced redox equations
posted by princess .
Use the following steps to balance the redox reaction below:
Mg + Au+ Mg2+ + Au
a. Write the oxidation and reduction halfreactions. Make sure each halfreaction is balanced for number of atoms and charge
b. Multiply each halfreaction by the correct number, in order to balance charges for the two halfreactions.
c. Add the equations and simplify to get a balanced equation.

You need to learn how to do these yourself. What exactly do you not understand so we can get you started on th right foot.

Mg to Mg2+ loses 2 electrons
Au+ to Au gains one electron. So 2Au for each Mg
Mg yields Mg+ +2e
Au+ + e yields Au
so multiply the second equation by 2 
hey ibis